bake · Baking

How to Make a Perfect Sponge Cake

Name: How to Make a Perfect Sponge Cake
Yield: 8
Ingredients: 1 cup all-purpose flour; 4 large eggs; ¾ cup granulated sugar

A proper sponge cake relies on beaten eggs for lift, not baking powder. Whip whole eggs with sugar until tripled in volume, then gently fold in sifted flour. Bake at 350°F in a lined pan for 25-30 minutes until golden and springy to touch.

Total time: 50 min
Hands-on: 20 min
Serves: 8
Difficulty: Medium

Ingredients

1 cup all-purpose flour
4 large eggs
¾ cup granulated sugar

Step by step

Prepare your pan and oven. Line a 9-inch round cake pan with parchment paper and grease the sides. Preheat oven to 350°F. Position the rack in the center.
Sift the flour. Sift 1 cup all-purpose flour three times into a bowl. This aerates the flour and prevents lumps that would deflate your batter.
Beat eggs and sugar. In a large bowl, whisk together 4 large eggs and ¾ cup granulated sugar. Beat with an electric mixer on high speed for 8-10 minutes until the mixture triples in volume and forms ribbons when lifted.
Test the ribbon stage. Lift the beaters - the mixture should fall in thick ribbons that hold their shape on the surface for 3 seconds before disappearing back into the batter.
Fold in flour gently. Add one-third of the sifted flour to the egg mixture. Using a large metal spoon or rubber spatula, fold from bottom to top with gentle cutting motions. Add remaining flour in two more additions.
Pour and bake immediately. Pour batter into prepared pan - do not tap or shake. Bake for 25-30 minutes until golden brown and the cake springs back when lightly pressed in the center.
Cool properly. Run a knife around edges immediately, then turn out onto a wire rack. Cool completely before cutting or frosting.

Tips & troubleshooting

Room temperature eggs whip to greater volume than cold ones
Stop mixing the moment the flour disappears - overmixing deflates the eggs
Never open the oven door during the first 20 minutes of baking
A properly beaten egg mixture should hold soft peaks when you lift the beaters
Use a metal spoon for folding - it cuts through the batter more cleanly than rubber

Variations

Victoria Sponge. Split the cake horizontally and fill with jam and whipped cream. Dust the top with powdered sugar.
Chocolate Sponge. Replace 2 tablespoons flour with cocoa powder. Sift them together before folding into eggs.
Lemon Sponge. Add finely grated zest of one lemon with the flour. Brush finished cake with lemon syrup while warm.

Questions

Why did my sponge cake turn out dense and flat?: The eggs weren't beaten long enough to incorporate sufficient air, or the flour was mixed in too vigorously, deflating the foam structure.
Can I make this without an electric mixer?: Yes, but expect 15-20 minutes of vigorous whisking by hand. The mixture must triple in volume and hold ribbons when lifted.
How do I know when the eggs are beaten enough?: The mixture should be pale yellow, tripled in volume, and when you lift the beaters, it falls in ribbons that sit on the surface for 3 seconds before sinking back in.
Can I add butter to make it richer?: Traditional sponge contains no butter - that's a different cake entirely. Adding butter will change the texture and require different techniques.
Why does my sponge shrink after baking?: The oven temperature was too high, causing rapid rise and collapse, or the cake was underbaked and the structure couldn't support itself when cooled.