Vanilla Sponge Cake
A true sponge relies on whipped eggs for lift rather than chemical leaveners. By heating the eggs and sugar together until they reach body temperature before whipping them into a thick, pale ribbon, you create the stable air structure necessary for a tall, airy cake that yields to the touch.
Commit to the whisking time.
The cake's volume depends entirely on how much air you beat into the eggs; do not rush this stage, or the cake will be dense.
- stand mixer or hand mixer
- 9-inch round cake pan
- parchment paper
- fine-mesh sieve
- rubber spatula
What goes in.
- 4large eggs, room temperature
- 3/4 cupgranulated sugar
- 1 cupcake flour, sifted
- 1/4 tspfine sea salt
- 3 tbspunsalted butter, melted and cooled
- 1 tspvanilla bean paste
Visual confirmation of structure
When you lift your whisk, the batter should fall back into the bowl and remain on the surface, holding its shape for several seconds before slowly dissolving into the mass.
The method.
Prep the pan
Grease the bottom and sides of the pan with butter. Line the base with parchment paper, then dust lightly with flour, tapping out the excess.
Whip the eggs
Place eggs and sugar in a heatproof bowl over a pot of simmering water. Whisk constantly until the sugar is dissolved and the mixture feels warm to the touch. Remove from heat and beat on high speed until it triples in volume and turns pale ivory.
Fold in the dry ingredients
Sift the flour and salt over the egg mixture in three batches. Use a rubber spatula to fold gently, cutting down the center and sweeping around the sides to avoid deflating the bubbles.
Incorporate butter
Drizzle the melted butter and vanilla down the side of the bowl. Fold quickly but gently until just combined. Do not overmix or the cake will lose its lightness.
Bake
Pour into the prepared pan and smooth the top. Bake at 350°F (175°C) for 25 to 30 minutes, or until the center springs back when lightly pressed and the edges pull away slightly from the pan.
Cool
Run a thin knife around the edge immediately. Invert onto a wire rack to cool completely.
Other turns to take.
Lemon Sponge
Add one tablespoon of finely grated lemon zest to the egg mixture before whipping.
Almond Sponge
Replace two tablespoons of flour with fine almond flour for a slightly denser, nuttier crumb.
When it doesn't go to plan.
Ensure your eggs are truly room temperature; cold eggs will not whip to the necessary volume.
Sifting the flour is non-negotiable; it prevents clumps that would weigh down the delicate batter.
If the cake begins to brown too quickly on top before the center is set, loosely tent a piece of foil over the pan.
The ones that keep coming up.
Why did my sponge sink in the middle?
This usually happens if the cake was underbaked or if the oven door was opened too early. Ensure the center is firm to the touch before removing.
Can I use all-purpose flour?
You can, but the texture will be noticeably coarser. Cake flour is preferred for the soft, cloud-like crumb expected in a sponge.
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