10-Inch Sponge Cake Recipe: Light-as-Air Layers With Vanilla Infusion

This 10-inch sponge cake recipe delivers the lightest, fluffiest layers you'll ever bake—vanilla-infused perfection that stays moist for days. The secret lies in properly folded egg whites and precise baking at 350°F, creating that signature tender crumb. I've perfected this technique over years of testing, ensuring every slice is airy yet sturdy enough to hold fillings or frosting without collapsing.

The foundation starts with room-temperature eggs and a gentle hand when folding—overmixing is the enemy of that signature sponge texture. You'll work with simple ingredients (flour, sugar, eggs, vanilla) but master a technique that transforms basic components into something extraordinary. This recipe builds on classic French sponge methods while adapting for home bakers with foolproof timing and temperature control.

What you'll end up with is a 10-inch cake that's perfectly golden on the outside and cloud-like inside, with layers that separate cleanly for fillings or frosting. The vanilla infusion creates subtle depth without overpowering the delicate structure. Whether you're making it for a celebration or a quiet afternoon treat, this sponge cake delivers restaurant-quality results with minimal effort.

Ready to elevate your baking game? The same core technique applies to all 10 variations—vanilla, chocolate, citrus, matcha, and more—each with its own unique twist while maintaining that signature light-as-air texture. Let's get started with the classic vanilla version that started it all.

Ingredients for 10 sponge cake

These twelve ingredients create the signature light-as-air sponge cake with layers that separate perfectly.

The flour and sugar form the structural backbone of this cake, but quality matters here. King Arthur or Gold Medal flours yield the best results due to their high protein content for delicate structure. For sugar, superfine granulated (like Domino brand) ensures even distribution without graininess. Eggs must be room temperature—cold yolks won't emulsify properly, compromising the cake's signature tenderness. I always use organic, free-range eggs from local farms—they whip to higher volume. The butter should be cold and cubed when creamed with sugar to incorporate maximum air.

No vanilla bean paste? Double the vanilla extract for intensity. Substituting milk with heavy cream adds richness, though the cake will be slightly denser. For a citrus twist, orange zest at half the amount of lemon works beautifully. The baking powder is non-negotiable—Diamond Crystal measures differently than other brands, so use the spoon-and-level method. If you're gluten-sensitive, King Arthur gluten-free flour blend can replace all-purpose flour at a 1:1 ratio, though texture will differ slightly. For a dairy-free version, coconut oil replaces butter and almond milk replaces dairy milk.

Store the cake layers wrapped in parchment paper between layers of plastic wrap in the fridge for up to 3 days or freeze for 3 months. The vanilla infusion deepens over time, so freshly baked cake tastes subtly different from day-old. To prevent drying, I brush layers with simple syrup (equal parts sugar and water, heated until dissolved) before assembling. For serving, dust with powdered sugar through a fine-mesh sieve to avoid clumping. This cake reheats beautifully—30 seconds at 350°F restores its moistness.

Step-by-step instructions for light-as-air vanilla sponge cake

Master the technique for ethereal layers with this foolproof method.

Separate the 8 whole large eggs into yolks and whites, keeping them in separate bowls. Place the whites in the fridge to chill while you work with the yolks. In a heatproof bowl, combine the 2 cups granulated sugar and 1 cup unsalted butter over a double boiler.

Heat gently until the butter melts and the sugar dissolves completely—this should take about 5 minutes. Remove from heat and let cool to room temperature (about 70°F). This cooling step is crucial; warm ingredients will cook unevenly. While cooling, whisk the egg yolks in a separate bowl until pale and slightly thickened.

Gradually add the cooled sugar-butter mixture to the egg yolks, whisking constantly until fully combined and the mixture triples in volume. This step creates the signature airiness of Italian sponge cake. Next, incorporate the 2 tablespoons pure vanilla extract, 1 tablespoon vanilla bean paste, 1 tablespoon lemon zest, 0.5 cup milk, and 0.25 cup vegetable oil into the yolk mixture.

In a separate bowl, sift together the 2.5 cups all-purpose flour, 1.5 teaspoons baking powder, and 0.5 teaspoon salt. Gently fold this dry mixture into the yolk mixture using a spatula in a J-stroke motion—this preserves the air you've incorporated. Stop folding when just combined; overmixing develops gluten and makes the cake dense.

Remove the chilled egg whites from the fridge and whip them to stiff peaks using a stand mixer fitted with the whisk attachment. This means the whites should hold their shape when the whisk is lifted and form a sharp peak. Gradually add the remaining 1 tablespoon lemon zest while whipping—this enhances flavor without affecting texture.

With the mixer running on low speed, carefully fold one-third of the whipped egg whites into the yolk mixture to lighten it. Then, using a spatula, gently fold in the remaining egg whites in two additions, being careful not to deflate the air. The batter should be smooth and glossy with no visible streaks of flour.

Preheat your oven to 350°F and grease three 10-inch round cake pans with butter and flour. Divide the batter evenly among the pans, spreading it thinly to create light, airy layers. Bake for 12-15 minutes until the tops spring back when touched and a toothpick inserted comes out clean.

Immediately after baking, invert the cakes onto a wire rack to cool completely. This prevents them from becoming gummy. Once fully cooled, you'll have three delicate, 10-inch layers ready for assembly. The key here is patience—cooling ensures clean slicing and proper layering.

Prepare a vanilla buttercream by beating the 1 cup unsalted butter with the 1 cup powdered sugar until light and fluffy. Add the 2 tablespoons pure vanilla extract and mix until smooth. Place the first cake layer on a cake stand and spread a thin layer of buttercream on top.

Dust the layer with a thin film of powdered sugar to prevent sticking, then repeat with the remaining layers. Place the cake in the fridge for 30 minutes before serving to allow the buttercream to set slightly. This method creates a light-as-air texture with perfect vanilla infusion throughout.

Troubleshooting your 10 sponge cake

Cracked or Sunken Layers

This usually happens when the cake bakes too long or isn't cooled properly. I've found that baking at 350°F for 12-15 minutes is critical—any longer and the layers will dry out. After removing from the oven, immediately invert the cakes onto a wire rack to cool completely. If you notice cracks forming, simply brush the top with a simple syrup (equal parts sugar and water) before assembling to restore moisture. 💧

Dense or Gummy Texture

Overmixing the batter or using cold eggs are the most common culprits. Always use room-temperature eggs and fold the dry ingredients in using a gentle J-stroke motion. I recommend whisking the egg whites to stiff peaks and folding them in carefully to maintain airiness. If your cake turns out dense, try increasing the baking powder to 2 teaspoons next time for better lift.

Uneven Baking

This often occurs when the oven isn't properly preheated or the pans aren't evenly distributed. Always preheat your oven for at least 20 minutes before baking and place the pans on the middle rack. Rotate the pans halfway through baking if your oven has hot spots. I also recommend using 10-inch round cake pans with a light coating of butter and flour to prevent sticking and ensure even heat distribution.

Batter Too Thin or Too Thick

The ideal consistency should be smooth and glossy, similar to heavy cream. If your batter is too thin, you may have over-whipped the egg whites—try folding them in more gently next time. If it's too thick, your egg whites might not be fully whipped to stiff peaks. For a quick fix, add 1 tablespoon of milk to thin out the batter slightly. The key is to achieve a batter that's light enough to hold air but thick enough to maintain structure. ✨

Collapsed Cake After Baking

This typically happens when the cake is removed from the oven too early. Always wait until the top springs back when touched and a toothpick comes out clean before removing the cake. If your cake collapses, try reducing the baking powder slightly to 1 teaspoon and baking at a lower temperature of 325°F for a longer time. Additionally, ensure your oven is calibrated—many ovens run hotter than the set temperature.

Dry or Crumbly Cake

Overbaking is the most common cause of dryness. To prevent this, bake the cakes just until they're set (about 12-15 minutes) and remove them immediately. Store the baked layers in an airtight container with a damp paper towel to retain moisture. If your cake is already dry, try brushing the layers with a simple syrup before assembling. For extra moisture, add 1 tablespoon of vegetable oil to the batter next time.

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