This is the sponge cake recipe I come back to every single time. Four ingredients, no butter, no oil — just eggs, sugar, flour, and a little baking powder. That's it.
Why This Recipe Works
- Whipping whole eggs with sugar traps millions of tiny air bubbles — those bubbles are your only leavening agent besides a touch of baking powder
- No butter or oil means the cake is incredibly light and spongy, and absorbs syrups, frostings, and fruit juices like a dream
- Sifting the flour and folding gently preserves the air structure so the cake rises tall and even
- Not greasing the pan sides lets the batter grip and climb, preventing it from collapsing as it cools
Oh my god, this sponge cake. I know that sounds dramatic for something with four ingredients, but I've been making this exact recipe for years now and it still amazes me every time I pull it out of the oven. The first time I made a genoise was after watching a European baker on YouTube, and I genuinely couldn't believe the ingredient list. No butter? No oil? Just eggs, sugar, flour, and a pinch of baking powder? I was convinced it would taste like cardboard.
It didn't. It was the lightest, softest, most versatile cake I'd ever baked. Lily was maybe seven at the time and she said it tasted like a cloud, which honestly is the best review I've ever gotten. Now this is my go-to base whenever I need a layer cake. Matt's birthday? Sponge cake with chocolate frosting. Emma's class party? Sponge cake with strawberries and whipped cream. Jess's potluck? Same cake, different topping. It just works.
The whole trick is in the eggs. You whip them with sugar on high speed until they're thick, pale, and tripled in volume — about 8 to 10 minutes. That trapped air is basically your entire leavening. Then you fold in the flour as gently as humanly possible so you don't knock all that air out. That's it. That's the whole technique.
I bake when I'm stressed — it's my thing — and this recipe has gotten me through some chaotic weeks. It comes together in 10 minutes of active work, then you just wait for the oven to do its job. The hardest part is not opening the oven door while it bakes, because that rush of cool air can make it sink.
Once it's out of the oven, you've got two perfectly golden, impossibly light cake layers that are ready for absolutely anything. Dust them with powdered sugar and call it done, or go all out with layers of cream and fruit. This sponge absorbs moisture like nothing else — syrups, fruit juices, liqueurs — which is why it's the base for things like trifle and tres leches.
Grab your whisk attachment and a couple of cake pans. This one's going to surprise you.
How It Comes Together
Chef Tips
- Room temperature eggs are non-negotiable — cold eggs won't whip to full volume. If you forgot to take them out, place whole eggs in a bowl of warm water for 10 minutes.
- I've found that folding is the most critical step. Over-fold and you'll deflate all the air you just whipped in. Under-fold and you'll get pockets of dry flour. Aim for about 40-50 gentle strokes total across all three additions.
- Always use a conventional oven setting, not convection. The fan pushes hot air and can cause uneven rising or cracked tops.
- This cake freezes beautifully — wrap cooled layers tightly in plastic wrap, then foil. Thaw at room temperature for about an hour before decorating.
- Swap up to 2 tablespoons of flour for cocoa powder for a chocolate version. Sift the cocoa with the flour to avoid lumps.
Variations
Strawberry Shortcake
Split the layers, fill with whipped cream and sliced strawberries. The sponge soaks up the berry juices perfectly.
Chocolate Sponge Cake
Replace 2 tablespoons of flour with unsweetened cocoa powder. Sift together with the remaining flour.
Lemon Sponge Cake
Add the zest of 2 lemons to the egg-sugar mixture before whipping. Fill with lemon curd and whipped cream.
Tres Leches Base
Poke holes all over the cooled cake and pour the three-milk mixture over it. This sponge absorbs the liquid without falling apart.
Serving Suggestions
Serve plain with a dusting of powdered sugar, or layer with whipped cream and fresh berries for a classic strawberry sponge cake. This also makes an excellent base for trifle, tiramisu, and tres leches cake.
Make It Ahead
Bake the layers up to 2 days ahead. Wrap tightly in plastic wrap and store at room temperature. The cake actually slices more cleanly when it's a day old.
