This vanilla sponge cake delivers a light, tender crumb with a clean, buttery sweetness. It is the kind of cake that works as well for a simple afternoon slice as it does for a dressed-up layer cake.

You need no fancy equipment beyond a mixer and a gentle hand when folding the egg whites. The result is a tall, golden cake that feels effortless but looks like you fussed.

What Makes This Sponge So Good

The crumb is fine and springy, with a gentle vanilla note that does not overwhelm. Butter gives it a richer taste than oil-based sponges, while the whipped egg whites keep it high and pillow-soft.

A light dusting of powdered sugar or a spoonful of barely sweetened whipped cream is really all it asks for. That makes it the cake I reach for whenever I want something simple that still feels polished.

Ingredients

1 ½ cups (190 g) all-purpose flour: sifted, or use cake flour for an even more delicate crumb
1 ½ tsp baking powder
¼ tsp salt
½ cup (115 g) unsalted butter: softened to room temperature
1 cup (200 g) granulated sugar: divided, you will use some for the egg whites
4 large eggs: separated, preferably room temperature
2 tsp vanilla extract: the better the vanilla, the more it shines here
¼ cup (60 ml) whole milk: at room temperature

Variations / Substitutions

Lemon sponge: swap the vanilla for 1 tablespoon of lemon zest and add 1 teaspoon of lemon juice to the milk. The crumb stays just as tender with a bright citrus edge.
Almond cake: replace half the vanilla with almond extract. You will get a subtle nuttiness that pairs beautifully with stone fruit.
Buttermilk sponge: use buttermilk in place of the whole milk. It adds a faint tang and makes the crumb even softer.
Dairy-free: use a good plant-based butter stick and unsweetened oat milk. The texture will be slightly less rich but still tall and airy.

A chocolate sponge cake is just a cocoa swap away if you replace 3 tablespoons of the flour with unsweetened cocoa powder.

How to Make Fluffy Vanilla Sponge Cake

Step 1: Whip the Egg Whites

Preheat your oven to 350°F (180°C) and butter and flour an 8-inch round cake pan. In a completely clean bowl, beat the 4 egg whites with an electric mixer on medium speed until foamy, about 1 minute. Gradually sprinkle in ¼ cup of the sugar, then increase the speed to high and beat until stiff, glossy peaks form, 3 to 4 minutes total.

The whites should hold a peak that curls just slightly at the tip when you lift the beaters. If they look dry or grainy, stop immediately because you are past stiff peaks and the sponge will not rise as well.

Step 2: Cream the Butter and Yolks

In a separate large bowl, beat the softened butter with the remaining ¾ cup of sugar on medium-high speed until pale and fluffy, about 3 minutes. Scrape down the sides, then beat in the 4 egg yolks one at a time, fully incorporating each before adding the next. Mix in the 2 teaspoons of vanilla extract.

The mixture will look like thick, pale yellow frosting and should feel light when you drag a spatula through it. If it seems curdled, do not worry, that will smooth out once the dry ingredients go in.

Step 3: Mix the Dry Ingredients

Whisk together the 1 ½ cups of flour, the 1 ½ teaspoons of baking powder, and the ¼ teaspoon of salt in a medium bowl. With the mixer on low, add the dry mixture to the butter bowl in three additions, alternating with the ¼ cup of milk, and mix just until no streaks of flour remain, about 15 seconds per addition.

Stop the mixer as soon as the batter looks smooth. Overworking at this stage will develop the gluten and make the cake tough instead of tender.

Step 4: Fold the Batter Together

Add one large spoonful of the whipped egg whites to the batter and stir it in with a rubber spatula to lighten the mixture. Scrape the remaining egg whites on top, then fold gently by cutting through the center with the spatula and scooping the batter up and over.

Keep folding just until the white streaks disappear, about 20 to 30 strokes. A few small lumps of egg white are fine and far better than knocking all the air out.

Step 5: Slice and Dust with Sugar

Pour the batter into the prepared pan and smooth the top. Bake for 25 to 30 minutes, until the cake is deeply golden and a toothpick inserted in the center comes out with a few moist crumbs. Let it cool in the pan for 10 minutes, then run a knife around the edge and turn it out onto a rack to cool completely.

Once cool, slice the cake with a serrated knife and dust the top generously with powdered sugar right before serving. The crumb will be tall, springy, and full of tiny air pockets.

Tips for a High, Even Sponge

Do not open the oven door for the first 20 minutes.: A sudden drop in temperature can cause the center to sink.
Cool the cake upside down if you want extra height.: Turn it out onto a rack and let it rest bottom-side up while it cools completely; gravity helps set the structure.
A serrated knife gives the cleanest slices.: The fine teeth saw through the delicate crumb without squashing it.
The batter should look like thick, shiny whipped cream before it hits the pan.: If it is runny, you overfolded or your egg whites were too loose.
Use the toothpick test, not the clock alone.: Ovens vary, so start checking 2 minutes before the earliest time listed.

Bake times by pan: a toothpick should come out with a few moist crumbs.

Pan	Size	Time
Round cake pans	8-inch	25–28 mins
Round cake pans	9-inch	22–25 mins
Loaf pan	9×5-inch	30–35 mins
Cupcake tin	12-cup	18–20 mins

Storing Leftover Sponge

Refrigerate: Wrap the cooled cake tightly in plastic and store in the fridge for up to 4 days. Bring it to room temperature before serving so the butter softens and the crumb feels tender again.
Reheating: This cake is best served at room temperature or gently warmed. A short 10-second stint in the microwave per slice will refresh it without drying it out.

What to Serve With Fluffy Vanilla Sponge Cake

A tumble of fresh berries and a dollop of lightly sweetened whipped cream are a classic match, the fruit’s brightness cutting through any richness. For something more indulgent, spoon over a warm lemon glaze that seeps into the crumb and adds a sharp citrus counterpoint. If you are in the mood for a simple comfort pairing, a scoop of vanilla ice cream lets the cake’s delicate flavor stay front and center.

Frequently Asked Questions

Can I make this cake gluten-free?

Yes, a cup-for-cup gluten-free flour blend works well. Expect a slightly denser crumb that is still soft and springy.

Why did my cake sink in the middle?

The usual culprits are underbaking, opening the oven door too early, or the batter sitting too long before going into the oven. Check for doneness with a toothpick and work quickly once the egg whites are folded in.

Can I frost this sponge?

Yes, it is sturdy enough for buttercream or whipped cream frosting. Cool it completely first and use a serrated knife to level the top if it domed.

Can I add sprinkles for a funfetti version?

Absolutely. Fold 2 to 3 tablespoons of rainbow sprinkles into the batter right at the end, just before it goes into the pan, to keep colors from bleeding.