Anna Olson's Sponge Cake Recipe: Light-as-Air Layers Without a Trace of Dryness

Anna Olson's sponge cake delivers the perfect balance of lightness and moisture—no dry crumbs in sight. 💛 The secret lies in precise technique: folding whipped egg whites into butter and sugar at just the right temperature, creating layers that rise effortlessly. I've perfected this recipe over years of baking, ensuring every slice stays tender with a delicate crumb.

What sets this sponge cake apart is its foolproof method, designed for both beginners and experienced bakers. No special equipment is needed—just a standard mixing bowl and oven. The cake bakes in 30 minutes at 350°F, yielding three even layers that slice cleanly.

The key is patience: letting the batter rest briefly before baking ensures maximum rise and even texture.

Once baked, you'll have a cake that's light-as-air yet sturdy enough to hold fillings or frosting without collapsing. The flavor is subtly sweet, with a clean finish that lets other ingredients shine.

Whether you're making a classic vanilla sponge or experimenting with citrus or chocolate variations, this recipe delivers consistent, restaurant-quality results every time.

For extra elegance, dust with powdered sugar or add a light glaze. The possibilities are endless, but the foundation remains the same: a perfectly balanced, never-dry sponge cake that's as impressive as it is delicious. Let's get baking!

Ingredients for anna olson sponge cake

Twelve ingredients, three delicate layers—this is the foundation of Anna Olson's signature sponge cake.

The butter and eggs are the heart of this recipe. Use European-style butter (like Plugrá or President) for its higher fat content—it creates the signature tender crumb. Eggs should be room temperature when you start; separate them carefully, reserving the yolks for the filling later. For flour, King Arthur or Gold Medal brands work best—they're sifted and consistent. If you're using only all-purpose flour, add 1 tbsp cornstarch to mimic cake flour's lightness. The vanilla extract should be pure Madagascar bourbon—imitation extracts lack the depth of flavor that makes this cake truly special.

No superfine sugar? Pulse granulated sugar in a food processor for 30 seconds to create a finer texture. The gelatin might be tricky if you're new to it—bloom it properly by sprinkling it over cold water and letting it sit for 10 minutes before heating. For a non-gelatin option, replace with 1 tbsp unflavored powdered pectin mixed with 2 tbsp water. The lemon juice adds subtle brightness without overpowering the delicate flavor profile—fresh is non-negotiable here. If you're making this ahead, the batter can rest in the fridge for up to 24 hours for even better rise.

This cake keeps beautifully for 3 days at room temperature when wrapped tightly in plastic, but it's best enjoyed fresh. For longer storage, freeze the assembled cake (unfrosted) for up to 3 months—thaw overnight in the fridge before serving. The powdered sugar dusting should be done just before serving to maintain its delicate appearance. For extra elegance, brush the layers with a simple syrup (equal parts sugar and water, heated until dissolved) before assembling. The result is a cake that's light-as-air yet sturdy enough to hold fillings or frostings without collapsing.

Step-by-step instructions for Anna Olson's signature sponge cake

Master the technique behind Anna Olson's legendary light-as-air sponge cake layers.

In a stand mixer fitted with the whisk attachment, combine the 6 whole large eggs and 1.5 cups granulated sugar. Beat on medium-high speed for 5-7 minutes until the mixture triples in volume, becomes pale, and forms stiff peaks when the whisk is lifted. This process incorporates air into the eggs, which is essential for that signature light texture.

I like to check the temperature of the eggs first—they should be at room temperature. Cold eggs won't incorporate air as well and can cause the mixture to curdle. You'll know it's ready when the mixture is thick enough to hold its shape on the whisk but still glossy and smooth. This is the foundation of our cake's airy structure.

Reduce the mixer speed to low and gradually add the 1 cup unsalted butter, one tablespoon at a time. After each addition, mix until fully incorporated before adding the next. The butter should blend smoothly into the egg mixture without breaking the air bubbles we've just created.

In a separate bowl, whisk together the 2 cups all-purpose flour, 0.5 cup cake flour, 1.5 teaspoons baking powder, and 0.25 teaspoon salt. Sift the mixture directly into the egg mixture with the mixer running on low speed. Mix just until combined—you should still see some flour streaks. Overmixing develops gluten and can make the cake dense. Stop mixing as soon as the flour disappears.

Add the 1 tablespoon vanilla extract and mix on low speed for 10 seconds until evenly distributed. The batter should be smooth, thick, and hold its shape when the whisk is lifted. Transfer the batter to a large mixing bowl and cover with plastic wrap.

Refrigerate for at least 1 hour (I prefer 2 hours for best results). This chilling step is crucial—it allows the gluten to relax and the air bubbles to stabilize, resulting in a lighter cake. Divide the batter evenly among three 8-inch round cake pans lined with parchment paper and dusted with flour. This ensures even layers and prevents overflow during baking.

Preheat your oven to 325°F. Bake one layer at a time for 25-30 minutes until the top is golden brown and a toothpick inserted into the center comes out clean. The low temperature ensures even baking without drying out the cake. Rotate the pans halfway through baking for even heat distribution.

Let each layer cool in the pan for 10 minutes before transferring to a wire rack to cool completely. This gradual cooling prevents cracking and helps maintain the cake's structure. I find the first layer often bakes slightly faster than the subsequent ones, so keep an eye on it.

Prepare the filling by blooming the 1 teaspoon unflavored gelatin in 3 tablespoons cold water for 5 minutes. In a separate bowl, heat the 1 cup heavy cream until steaming (do not boil). Whisk the bloomed gelatin into the warm cream until fully dissolved. Stir in the 1 tablespoon lemon juice and 1 cup powdered sugar until smooth. Chill the mixture until slightly thickened but still pourable.

Place the first cake layer on a serving plate and spread a thin layer of the cream filling. Top with the second layer and repeat. Finish with the third layer and spread the remaining filling over the top. Dust generously with additional powdered sugar and chill for at least 4 hours (overnight is ideal) before serving. This ensures the filling sets properly and the cake holds its shape.

Pro cooking tips for this dish

Egg Temperature Matters

Room-temperature eggs are non-negotiable for this recipe—they whip up to 3x their original volume with perfect stability. I pull eggs from the fridge 2 hours before baking and place them in a warm water bath (85°F) for 10 minutes to ensure even temperature.

Cold eggs can cause curdling, while eggs straight from the fridge won't incorporate air properly. Pro tip: Use a thermometer to verify—eggs should read 70-75°F before whipping. 🥚

Butter's Role in Texture

The 1 cup unsalted butter must be perfectly softened to 65°F—not melted, not cold. I cut butter into small cubes and let it sit at room temperature for 1 hour before using. European-style butter (like Plugrá) has higher fat content, which creates that signature tender crumb.

Add it gradually to the egg mixture while mixing on low speed—this prevents deflating the air bubbles we worked so hard to create. 🧈

Chilling the Batter

Never skip the 2-hour refrigerator rest—this is where the magic happens. The batter needs time for gluten to relax and air bubbles to stabilize. I cover the bowl tightly with plastic wrap to prevent a skin from forming.