Traditional Sponge Cake
This is a cake defined by its structural integrity and lightness. It does not hide behind butter or heavy oils, making the technique of incorporating the dry ingredients into the egg foam the make-or-break moment.
Temperature matters for the foam
Ensure your eggs are at room temperature before you begin, as they whip to a much greater volume than cold ones. Use a light hand when adding the flour to prevent the batter from deflating.
- stand mixer with whisk attachment
- sifter
- 9-inch round cake pan
- parchment paper
- rubber spatula
What goes in.
- 4 largeeggs, room temperature
- 1 cupgranulated sugar
- 1 cupall-purpose flour, sifted
- 1/4 tspsalt
- 1 tspvanilla extract
Mastering the egg foam
Beat the eggs and sugar on high speed until the mixture thickens and turns pale yellow. When you lift the whisk, the batter should fall back into the bowl in a slow, continuous stream that remains visible on the surface for several seconds.
The method.
Prepare the pan
Grease the bottom and sides of the pan and line the base with parchment paper. Do not grease the sides too heavily, as the cake needs to climb the walls to gain height.
Whip the eggs
Place eggs, sugar, and salt in the mixer. Whisk on high until the mixture triples in volume and reaches the ribbon stage.
Add vanilla
Pour in the vanilla extract during the final 30 seconds of whipping.
Fold the flour
Sift the flour over the egg mixture in three batches. Use a rubber spatula to fold the flour in with a circular motion, moving from the bottom of the bowl to the top, until no streaks remain.
Bake
Pour into the prepared pan and smooth the top. Bake at 350°F for 25 to 30 minutes. The cake is ready when the surface is golden and the middle springs back when touched.
Cool
Run a thin knife around the edge and invert the cake onto a wire rack to cool completely before slicing.
Other turns to take.
Lemon Zest
Add the zest of one lemon to the egg mixture during the final stages of whipping for a bright finish.
Almond Sponge
Replace one-quarter of the flour with finely ground almond meal for a denser, nuttier crumb.
When it doesn't go to plan.
Sift your flour twice to ensure it is aerated and free of clumps before folding.
Avoid opening the oven door before the 20-minute mark to prevent the cake from collapsing.
If the batter looks streaky, keep folding; even a few lumps of flour can ruin the texture.
The ones that keep coming up.
Why did my cake sink in the middle?
The oven temperature was likely too low, or the cake was under-baked, meaning the structure hadn't set enough to hold the weight of the foam.
Can I use a different pan size?
Changing the pan size alters the baking time significantly. Stick to a 9-inch pan for the best height-to-structure ratio.