If you are looking to indulge in something uniquely light, fluffy, and absolutely delightful, this Cotton Cake Recipe is pure magic. This Japanese-style cotton cake boasts an airy texture that melts in your mouth and an enchanting golden top that invites you to dive right in. Whether you’re new to baking or a seasoned pro, this recipe promises a heavenly dessert experience that pairs simplicity with elegance in every bite.
Ingredients You’ll Need
Gathering the right ingredients is key to crafting the perfect Cotton Cake Recipe. Each item here plays an essential role, from the eggs that create stunning fluffiness to the cake flour that ensures a delicate crumb.
- 6 large eggs (separated): Egg whites provide the lift while yolks add richness and moisture.
- 1/2 cup whole milk: Adds creaminess and helps bind the ingredients smoothly.
- 1/2 cup vegetable oil: Keeps the cake moist without making it heavy.
- 1 teaspoon vanilla extract: Infuses a warm, comforting aroma and flavor.
- 3/4 cup cake flour (sifted): Creates a tender crumb; the lower protein flour is essential for the softness.
- 1/4 teaspoon salt: Enhances all the subtle flavors.
- 1/4 teaspoon cream of tartar: Stabilizes the egg whites for that perfect meringue texture.
- 1/2 cup granulated sugar: Sweetens gently while helping to develop stiff peaks in the meringue.
How to Make Cotton Cake Recipe
Step 1: Prepare Your Tools and Oven
Start by preheating your oven to 300°F. This lower temperature is crucial for even baking and that classic cotton-soft texture. Line an 8-inch round cake pan’s bottom with parchment paper but avoid greasing the sides. This helps the cake to rise and cling to the sides, keeping its signature height and structure.
Step 2: Mix the Yolk Batter
In a large bowl, whisk the egg yolks together with milk, vegetable oil, and vanilla extract until you get a smooth, creamy mixture. Sifting in the cake flour and salt afterward helps to keep the batter light, so gently fold these in until just combined, making sure not to overmix and lose the airiness.
Step 3: Perfect the Meringue
Using a clean, dry bowl, beat the egg whites with cream of tartar until they become foamy. Gradually add the sugar while continuing to beat, until you achieve stiff, glossy peaks. This meringue is the secret to the delicate fluffiness the Cotton Cake Recipe is famous for.
Step 4: Combine Batter and Meringue
Fold one-third of the meringue into the yolk batter gently; this lightens the mixture and makes folding the rest easier without losing volume. Then carefully fold in the remaining meringue in two batches, preserving as much air as possible to retain that luscious cotton-soft texture.
Step 5: Bake with a Water Bath
Pour the batter into the prepared pan and tap gently on the counter to release any trapped air bubbles. Place the cake pan inside a larger baking dish and fill the outer one-inch deep with hot water to create a water bath. Bake for 60 to 70 minutes until the cake’s top turns a beautiful golden color and the center sets firm to the touch.
Step 6: Rest and Cool
After baking, turn off the oven and leave the cake inside with the door slightly ajar for about 10 minutes — this gradual cooling prevents cracking. Then remove the cake, cool it completely on a wire rack, and carefully run a knife around the edges before unmolding.
How to Serve Cotton Cake Recipe

Garnishes
This cake is stunningly simple on its own, but a gentle dusting of powdered sugar, fresh berries, or a dollop of whipped cream perfectly complements the light flavors without overpowering them.
Side Dishes
Pair your cotton cake with a cup of fragrant green tea or a smooth latte to balance the sweetness. Fresh fruit salads or light sorbets also make refreshing accompaniments for a full dessert experience.
Creative Ways to Present
For a festive touch, serve slices with a drizzle of berry coulis or a sprinkling of toasted nuts. You can even layer cotton cake with fresh cream and fruits into mini trifles for an unexpected yet delightful twist.
Make Ahead and Storage
Storing Leftovers
Store any leftover Cotton Cake Recipe in an airtight container at room temperature for up to two days. To preserve freshness longer, refrigerate it, wrapping tightly with plastic wrap to avoid drying out.
Freezing
This cake freezes well when wrapped securely in plastic wrap and then aluminum foil. Freeze for up to two months; just thaw it overnight in the fridge before serving to retain that soft, fluffy texture.
Reheating
Reheat gently if desired by warming slices in a low oven (around 250°F) for 10 minutes or less, but often this cake is best enjoyed chilled or at room temperature to appreciate its airy crumb.
FAQs
What makes this cotton cake different from regular sponge cakes?
The Cotton Cake Recipe uses a water bath during baking and carefully folded meringue to create an exceptionally moist, airy texture that is lighter than typical sponge cakes.
Can I substitute cake flour with all-purpose flour?
While you can, cake flour is preferred because it has less protein, resulting in a softer, more delicate crumb. If you must use all-purpose flour, try replacing some of it with cornstarch for a lighter texture.
Why is cream of tartar important in this recipe?
Cream of tartar stabilizes the egg whites, helping achieve and maintain stiff peaks for the meringue, which is essential for the cake’s rise and fluffiness.
Can this recipe be made dairy-free or vegan?
This recipe relies heavily on eggs and dairy for its signature texture, so it is not easily adapted to vegan or dairy-free versions without significant changes.
How do I know when the cotton cake is fully baked?
The top should be golden and the center firm but springy to the touch. A gentle jiggle is okay, but it should not be liquid. Using a toothpick to check for moist crumbs (not wet batter) is also a good test.
Final Thoughts
Making this Cotton Cake Recipe is like inviting a little piece of Japan into your kitchen. It’s a delightful treat that balances simplicity with sophisticated texture and flavor, perfect for impressing friends or just treating yourself. Once you try it, I promise it will become one of your favorite go-to desserts for any occasion.
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Cotton Cake Recipe
- Prep Time: 20 minutes
- Cook Time: 70 minutes
- Total Time: 1 hour 30 minutes
- Yield: 8 slices
- Category: Dessert
- Method: Baking
- Cuisine: Japanese
- Diet: Vegetarian
Description
This Japanese-style Cotton Cake is a light, airy, and fluffy dessert that combines the delicate sweetness of a sponge cake with a melt-in-your-mouth texture. Baked in a water bath to achieve its signature softness, this cake is perfect for those seeking a low-fat, vegetarian-friendly treat that can be enjoyed chilled or at room temperature.
Ingredients
Egg Mixture
- 6 large eggs (separated)
- 1/2 cup whole milk
- 1/2 cup vegetable oil
- 1 teaspoon vanilla extract
Dry Ingredients
- 3/4 cup cake flour (sifted)
- 1/4 teaspoon salt
Meringue
- 1/4 teaspoon cream of tartar
- 1/2 cup granulated sugar
Instructions
- Prepare the Pan: Preheat the oven to 300°F (150°C). Line the bottom of an 8-inch round cake pan with parchment paper, and do not grease the sides to allow the batter to cling and rise properly.
- Mix Egg Yolks and Liquids: In a large bowl, whisk together the egg yolks, whole milk, vegetable oil, and vanilla extract until the mixture is smooth and homogeneous.
- Add Dry Ingredients: Sift the cake flour and salt into the egg yolk mixture, and gently fold in until just combined to avoid overworking the batter.
- Make Meringue: In a clean bowl, beat the egg whites with cream of tartar until foamy. Gradually add the granulated sugar while continuing to beat until stiff peaks form, creating a glossy meringue.
- Combine Mixtures: Fold one-third of the meringue gently into the yolk and flour mixture to lighten the batter. Then fold in the remaining meringue in two additions carefully to maintain aeration and prevent deflation.
- Prepare for Baking: Pour the batter into the prepared cake pan. Tap the pan gently on the counter to release any trapped air bubbles.
- Water Bath Setup: Place the cake pan into a larger baking dish and fill the outer dish with about 1 inch of hot water. This water bath helps to maintain a moist environment for even baking.
- Bake the Cake: Bake in the preheated oven for 60 to 70 minutes, or until the top of the cake is golden brown and the center is set and springs back lightly when touched.
- Rest the Cake: Turn off the oven and leave the cake inside with the door slightly ajar for 10 minutes to prevent sudden temperature changes that could cause sinking.
- Cool and Serve: Remove the cake from the oven and allow it to cool completely before running a knife gently around the edges to release it from the pan. Serve chilled or at room temperature with fresh berries, powdered sugar, or whipped cream as desired.
Notes
- This cake is best enjoyed chilled or at room temperature to maintain its light texture.
- Serve with fresh berries, a dusting of powdered sugar, or a dollop of whipped cream for added flavor and presentation.
- Do not grease the sides of the cake pan to allow the batter to rise properly.
- Be gentle when folding the meringue to keep the batter airy.
- Using a water bath during baking ensures a moist and tender crumb.


