Enchanted White Swirl

This post was sponsored by MARS and Pillsbury. All opinions are mine alone.

Effortless Elegance: The Ultimate Snow White Roll Cake with White Chocolate Mousse

Imagine a dessert so delicate it practically melts in your mouth, so pristine white it evokes the magic of a winter wonderland, and so utterly delicious it will be the star of any gathering. Now, imagine making this show-stopping dessert with the surprising ease of a box cake mix! This isn’t a dream – it’s our gorgeous Snow White Roll Cake, a masterpiece of tender cake and ethereal white chocolate mousse filling. Forget spending an entire day slaving in the kitchen; this recipe proves that sophisticated doesn’t have to mean complicated. Get ready to bake an unforgettable treat that’s as beautiful as it is incredibly light and flavorful.

Snow White Roll Cake topped with festive crushed red and green M&Ms, ready for holiday celebrations.
A festive Snow White Roll Cake adorned with crushed M&Ms, perfect for holiday gatherings.

Why You’ll Fall in Love with This Elegant Roll Cake

The holiday season is a time for joy, celebration, and, of course, magnificent food. But let’s be honest, who wants to spend countless hours in the kitchen when you could be making memories with loved ones? When planning your festive menu, you’re likely searching for a dessert that strikes the perfect balance: something visually stunning, incredibly tasty, yet surprisingly straightforward to prepare. This Snow White Roll Cake is precisely that dessert.

It defies expectations by delivering unparalleled elegance and a luxurious taste, all while requiring only a handful of readily available ingredients. You might think such a delicate and airy cake, paired with a rich, velvety filling, would be a daunting task, but that couldn’t be further from the truth. We’ve mastered the art of creating a dessert that looks like it took hours of painstaking effort, yet comes together with remarkable speed and simplicity.

This recipe isn’t just about convenience; it’s about the sheer delight it brings. You’ll be captivated by its unbelievably light and tender texture, which is a hallmark of a truly well-made roll cake. Each bite offers a delicate flavor profile that perfectly complements the creamy, sweet white chocolate mousse. And for an extra touch of holiday cheer, the optional crushed red and green M&Ms add a delightful crunch and a vibrant pop of color, making this cake not only a feast for the palate but also a joyous spectacle for the eyes. Prepare to impress everyone with your baking prowess, all while keeping your holiday stress to a minimum.

Key ingredients laid out for making the Snow White Roll Cake.
A selection of simple ingredients that transform into a spectacular dessert.

Key Ingredients for Your Perfect Roll Cake

The true magic of this Snow White Roll Cake lies in its clever use of a pantry staple: the humble box cake mix! This ingenious shortcut allows us to create a sophisticated dessert without the fuss of measuring multiple dry ingredients. Let’s dive into the essential components that make this recipe a winner:

  • Pillsbury Moist Supreme White Premium Cake Mix: This is the foundation of our incredibly delicate cake. A crucial note here is that we only need half of the box mix to create one roll cake. This precise measurement is key to achieving the perfect elastic sponge that rolls without cracking. You’ll want to weigh out 215g for accuracy.
  • Melted Unsalted Butter and Milk: These liquid ingredients are essential for enriching the cake batter, infusing it with a wonderful flavor and ensuring a moist crumb. The butter adds richness, while the milk contributes to the overall tender texture.
  • Egg Whites: Whipped into a luscious meringue, egg whites are the secret behind the cake’s flexible structure and its pristine, snow-white appearance. The meringue introduces air into the batter, resulting in a remarkably light and airy sponge that’s easy to roll without breaking.
  • High-Quality White Chocolate and Heavy Whipping Cream: These two form the base of our dreamy white chocolate mousse filling. The white chocolate provides a sweet, creamy flavor, while the heavy cream whips up into a light, airy texture that complements the cake perfectly.
  • Red and Green M&Ms (Optional, but Highly Recommended): For a truly festive touch, crushing some Holiday Minis M&Ms and sprinkling them on top adds a vibrant burst of color and a delightful, subtle crunch. It’s the perfect finishing touch for a holiday dessert.
  • Powdered Sugar: A dusting of powdered sugar on your kitchen towel is vital for preventing the warm cake from sticking as you roll it, helping to maintain its delicate structure.

By understanding the role of each ingredient, you’ll appreciate how these simple components come together to create such an extraordinary dessert.

Step-by-Step Guide: How to Make This Snow White Roll Cake

1. Crafting the Perfect Elastic Batter

The secret to a roll cake that doesn’t crack lies in a flexible and airy sponge. To achieve this, we start by whipping egg whites into a firm meringue. This meringue is crucial as it adds significant volume and elasticity to the batter, making the cake pliable and easy to roll. While the egg whites are whisking, gently combine your milk and melted butter in a separate small bowl. This mixture will infuse the cake with a rich flavor and moisture.

Whipped egg whites and a separate bowl with melted butter and milk mixture.
Separately prepared whipped egg whites and the butter-milk mixture.

Next, sift half of your cake mix directly into the whipped egg whites. Sifting is an important step that prevents lumps and ensures smooth incorporation, avoiding the need for excessive mixing that could deflate your precious meringue. Gently fold the dry ingredients into the egg whites until mostly combined. Then, pour in the milk and butter mixture. Continue to gently fold until the batter is smooth and uniform. Don’t be alarmed if the batter deflates slightly when you add the dry ingredients – it’s natural! The butter mixture will help bring it back to a beautiful, smooth consistency. Remember, the key here is to mix gently to preserve as much air as possible.

Step-by-step photos illustrating the gentle folding of batter ingredients.
Folding the dry ingredients into the whipped egg whites, followed by the butter and milk.

Baking Tip: Gentle Folding

Always mix the batter with a light hand. Over-mixing will deflate the carefully whipped egg whites, leading to a denser cake that is prone to cracking when rolled.

2. Baking the Delicate Sponge

Prepare a standard baking sheet (approximately 18x13x1 inches, often called a baker’s half sheet pan) by lining it with parchment paper or a silicone mat. This step is crucial for easy release of the delicate baked cake. Pour the prepared batter onto the lined baking sheet and use an offset spatula or a flexible silicone scraper to spread it evenly across the entire surface. Don’t worry if the layer seems incredibly thin; this is exactly what we want for a perfectly flexible roll cake. It will rise beautifully in the oven!

Bake the cake in a preheated oven at 350°F (177°C) for approximately 12 to 15 minutes. Keep a close eye on it, as baking times can vary slightly depending on your oven. The cake is done when a toothpick inserted into the center comes out clean. You’re looking for a cake that is lightly golden at the edges, but not browned, to ensure it remains moist and pliable. Over-baking is the enemy of a successful roll cake, as it can lead to dryness and cracking.

Roll cake batter spread in a baking sheet before and after baking, showing its perfect rise.
The thin layer of batter transforming into a perfectly risen sponge cake.

Baking Tip: Thin Layer is Key

Don’t be alarmed by how thin the batter layer appears when spread on the sheet. This minimal thickness is intentional and essential for creating a light, flexible cake that can be rolled without cracking.

3. Whipping Up the Silky Mousse Filling

While your cake is baking and cooling, you can efficiently prepare the luscious white chocolate mousse filling. This will save you time and ensure everything is ready for assembly.

  1. Start by gently melting the white chocolate. Place your chopped white chocolate in a microwave-safe bowl and heat it in 30-second bursts at 50% power, stirring well after each interval. White chocolate can seize easily if overheated, so patience is key.
  2. Once melted and smooth, warm about 1/4 cup of your heavy cream. You can do this in the microwave for about 30 seconds or in a small saucepan until hot but not boiling. Pour the warm cream over the melted white chocolate and gently mix until the mixture is perfectly smooth and glossy. Set this aside to cool completely. It’s critical that this mixture is cool before combining with whipped cream, otherwise, it will deflate your mousse.
  3. In a separate, chilled mixing bowl, whip the remaining 1 cup of heavy cream until stiff peaks form. The cream should hold its shape firmly.
  4. Finally, gently pour the cooled white chocolate mixture into the whipped cream. Using a spatula, carefully fold the two together until they are well combined and the mousse is light and airy.

Mousse Tip: No Over-Whipping

Once the cooled white chocolate mixture is added, do NOT use a mixer to combine it with the whipped cream. Aggressive mixing or whipping at this stage can cause the mousse to curdle or become grainy. Gentle folding with a spatula is essential for a smooth, airy texture.

4. The Grand Finale: Filling and Rolling

This is where your roll cake truly comes to life! Before the cake finishes baking, prepare your rolling surface. Lay out a large, lint-free kitchen towel on a clean counter and generously dust it with powdered sugar. This sugary surface will prevent the warm cake from sticking and help it release easily.

As soon as the cake comes out of the oven, immediately and carefully invert it onto the prepared kitchen towel. Gently peel off the parchment paper or silicone mat. While still warm, tightly roll the cake, along with the towel, starting from one of the shorter sides. This “muscle memory” step is crucial; rolling the cake while warm allows it to set its shape and significantly reduces the risk of cracking once cooled. Place the rolled cake (still in the towel) on a wire rack and let it cool completely, which usually takes about an hour.

Once fully cooled, carefully unroll the cake. Now, it’s time for the delicious filling! Generously smear the white chocolate mousse filling over the entire surface of the cake, reserving about 1/3 of the filling to frost the outside later. A helpful trick is to spread a slightly thinner layer of filling towards the outer edge of the cake, which helps create a neater roll. Finally, carefully but firmly re-roll the cake. Trim off any uneven ends for a polished look. With the remaining mousse, frost the entire exterior of the cake, creating a smooth, snowy finish. If desired, sprinkle with crushed M&Ms for that irresistible festive touch.

Step-by-step photos demonstrating the process of filling and rolling the delicate cake.
Unrolling, filling with mousse, and re-rolling the cake to create a perfect log.

The result is a stunning Snow White Roll Cake – pristine white, impossibly light, and melt-in-your-mouth delicious! The sprinkle of crushed M&M’s Holiday minis not only adds a perfect festive look that’s truly enchanting but also provides a delightful, unexpected crunch that is absolutely divine. This cake isn’t just a dessert; it’s a celebration in every slice.

A beautiful slice of Snow White Roll Cake, showcasing the creamy white chocolate mousse filling and M&M topping.
A perfect slice reveals the airy cake and generous white chocolate mousse filling.

Expert Roll Cake Tips for Guaranteed Success

Creating the perfect roll cake might seem intimidating at first, and it’s true that precision can make all the difference. I’ve had my share of learning experiences perfecting this recipe, and I’m happy to share the valuable lessons that will help you achieve a flawless cake every time. These tips are crucial for preventing cracks and ensuring a beautiful, flexible sponge:

  1. Accurate Cake Mix Measurement is Key: While it might be tempting to eyeball “half a box,” precisely weighing out 215g of the cake mix is paramount. The elasticity of your sponge cake relies on the correct ratio of dry ingredients to eggs and liquid. Even a slight excess of dry ingredients can result in a cake that’s too dry and stiff, making it prone to cracking when you attempt to roll it.
  2. Sift Your Cake Mix: Don’t skip this step! Sifting the cake mix before adding it to your egg whites removes any lumps that might be present. Lumps can be difficult to incorporate quickly, leading you to overmix the batter. Overmixing, in turn, deflates the airy meringue, resulting in a denser cake that is less flexible and more likely to crack.
  3. Avoid Over-baking at All Costs: A dry cake is a cracked cake. Over-baking causes the sponge to lose essential moisture, making it brittle. Keep a close watch on your oven and remove the cake as soon as a toothpick comes out clean and the edges are lightly golden, not browned. This ensures your cake remains moist and pliable enough to roll smoothly.
  4. Roll While Warm: Create “Muscle Memory”: This is one of the most critical steps. As soon as the cake comes out of the oven, gently invert it onto your powdered sugar-dusted towel and roll it up immediately while it’s still warm. Rolling it warm helps the cake create “muscle memory” – it learns to hold the rolled shape. If you let it cool too much before the initial roll, it will become stiff and lose its flexibility, making it highly susceptible to cracking when you try to shape it.
  5. Patience and Persistence Pay Off: At the end of the day, baking should be enjoyable! Take your time with each step, follow the directions carefully, and don’t be afraid to step away for a moment if you feel rushed or stressed. With these tips and a little practice, you’ll be creating stunning roll cakes with confidence.

Don’t Despair: Repurpose a “Failed” Roll Cake!

Even with the best intentions and careful execution, sometimes a roll cake might not roll perfectly and fall apart. But please, do NOT throw it away! A crumbled cake is just an opportunity for another delicious treat. Here’s a fantastic way to re-purpose any “failed” roll cake into delightful cake balls:

  1. Take your crumbled roll cake (filling and all) and place it in a large mixing bowl. Add about 2 ounces of plain cream cheese to the mixture. The cream cheese acts as a binder, adding moisture and a slight tang that complements the sweet cake.
  2. Using a paddle attachment on a stand mixer, or simply your hands, mix everything together until a cohesive, dough-like consistency is formed. It should be firm enough to roll into balls.
  3. Roll the mixture into 1-inch balls. A medium cookie scoop can be incredibly helpful for creating uniform sizes.
  4. Dip these delicious cake balls into your choice of melted chocolate or colorful candy melts for an extra layer of flavor and a beautiful finish. You can then decorate them with sprinkles, nuts, or even more crushed M&Ms. Chill until set, and you’ll have a delightful, bite-sized treat!

This “no-waste” approach ensures that every bit of your effort turns into a sweet reward, no matter what happens during the rolling process.

Delicious white cake balls, perfect for repurposing a broken roll cake.
Cake balls made from a repurposed roll cake, ready for dipping.

I hope this guide inspires you to create a truly memorable and surprisingly simple dessert for your next holiday table or special occasion. Happy baking!

Sliced white roll cake topped with crushed red and green M&Ms.
4.09 from 12 votes

Snow White Roll Cake

By
Shinee Davaakhuu

This gorgeous snow white roll cake is melt-in-your-mouth delicate and light and is filled with white chocolate mousse filling.

Prep:
20 mins
Cook:
13 mins
1 hr
Total:
2 hrs
Servings:
8 servings
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Ingredients

For the Cake:

  • 4 large egg whites
    Note 1: You can use 140g of liquid carton egg whites.
  • ¼ cup (60 ml) milk
    Note 2: Whole or 2% milk works. For dairy-free, use nut milk or water.
  • 4 tablespoons (55 g) unsalted butter, melted
  • ½ box Pillsbury Moist Supreme White Premium Cake Mix
    Note 3: Crucially, only use 215g (half) of the box mix for one cake.
  • 2-3 tablespoons powdered sugar for dusting

For the White Chocolate Mousse Filling:

  • 1 ¼ cups (300 ml) heavy whipping cream, divided
  • 4 oz (115 g) white chocolate, finely chopped
  • M&M’s Holiday Minis, crushed for topping (optional)

Instructions

To Make the Cake:

  1. Preheat oven to 350°F (177°C). Line a 16.5 x 11.38 x 1 inch baking sheet (half sheet pan) with parchment paper or a silicone mat.
  2. In a large mixing bowl with a whisk attachment, beat egg whites on medium speed until soft peaks form (3-5 minutes).
  3. Meanwhile, combine milk and melted butter in a small bowl.
  4. Sift the measured cake mix (half a box, 215g) into the whipped egg whites. Gently fold the batter with a silicone spatula until most dry ingredients are incorporated.
  5. Pour in the milk and butter mixture. Continue to gently fold until the batter is smooth and well combined.
  6. Pour the batter onto the prepared baking sheet and spread it evenly across the entire surface. (It will be a thin layer, which is correct for a roll cake.)
  7. Bake for 12-15 minutes, or until a toothpick inserted comes out clean. The cake should appear lightly golden, not browned.
  8. While the cake bakes, prepare a lint-free kitchen towel on a flat surface and generously dust it with powdered sugar.
  9. As soon as the cake is done, carefully invert it onto the prepared kitchen towel. Peel off the parchment paper/silicone mat. Tightly roll the warm cake with the towel, starting from a short side. Place on a wire rack to cool completely for about an hour.

To Make the Mousse Filling:

  1. Microwave ¼ cup of heavy whipping cream until hot (about 30 seconds).
  2. Place chopped white chocolate in a small bowl. Pour hot cream over it, let stand for 1 minute, then stir until chocolate is fully melted and smooth. Cool completely (you can place it in the fridge for a few minutes to speed this up).
  3. In a mixing bowl with a whisk attachment, beat the remaining 1 cup of heavy whipping cream until stiff peaks form.
  4. Add the cooled white chocolate mixture into the whipped cream. Gently fold with a spatula until well combined. Do NOT whisk with a mixer, or it may curdle.

To Fill and Roll the Cake:

  1. Once the cake is completely cooled, carefully unroll it from the towel.
  2. Generously spread white chocolate mousse over the cake, reserving about ½ cup of filling for frosting the outside. Spread a thinner layer of filling on the outer edge of the cake.
  3. Tightly re-roll the cake. Trim off the ends for a neat presentation.
  4. Frost the entire cake with the reserved mousse filling. Sprinkle crushed M&Ms for a festive touch, if desired.
  5. Refrigerate the cake until ready to serve. This delicate cake is best served the same day. Leftovers can be refrigerated for up to 3 days in an airtight container.

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Tips & Notes

Note 1: Carton Egg Whites: For convenience, you can use liquid egg whites from a carton. You will need 140g of liquid egg whites for this recipe.

Note 2: Milk Variations: I’ve successfully used both whole milk and 2% milk. For a dairy-free version, any nut milk (like almond or oat) or even water can be substituted.

Note 3: Cake Mix Usage: Remember that this recipe specifically calls for only half of a standard box cake mix (approximately 215g). If you wish to use the entire box, you MUST double the recipe and divide the batter evenly between two separate baking sheets to make two roll cakes. Attempting to bake the full batter on a single sheet will result in a cake that is too thick and will undoubtedly crack when rolled.

Storing Tips:
– This delicate roll cake is at its absolute best when served on the same day it’s made, as its freshness and lightness are unparalleled. However, you can prepare it one day in advance.
– Store any leftovers in an airtight container in the refrigerator for up to 3 days.
– This cake is generally not suitable for freezing, as its delicate texture and mousse filling may not hold up well after thawing.

Nutrition

Servings:
1 slice
Calories:
395kcal
Carbohydrates:
38g
Protein:
5g
Fat:
25g
Sugar:
24g
Sodium:
345mg
Course:
Dessert
Cuisine:
American
Sliced white roll cake topped with crushed red and green M&Ms.

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