Mary Berry Genoise Sponge is a traditional, whisked-egg sponge cake made from eggs, sugar, flour, and butter. It relies on whipping eggs to full volume instead of using baking powder, resulting in a light, tender cake often used in layered desserts and patisserie-style bakes.
4 large eggs (room temperature)
120g caster sugar
120g plain flour
25g melted butter (cooled slightly)
1 tsp vanilla extract (optional)
Pinch of salt
Line the base with parchment and lightly grease the sides to help the sponge release cleanly.
Place eggs and sugar in a heatproof bowl over simmering water, whisking gently until warm—this helps them whip to maximum volume.
Using an electric whisk, beat the warm egg mixture for 6–8 minutes until thick, pale, and tripled in volume.
Sift the flour over the bowl and fold gently with a spatula, keeping as much air as possible in the mixture.
Mix a spoonful of batter into the cooled melted butter, then fold it back into the main bowl. This keeps the mixture light and prevents deflation.
Transfer the batter gently into the prepared tin, smoothing the top without knocking out air.
Bake at 180°C (350°F) for 20–25 minutes until golden and springy to the touch.
Cool in the tin for a few minutes before turning out onto a wire rack to cool completely.
Find it online: https://maryberrycooks.co.uk/mary-berry-genoise-sponge/