Mary Berry’s Birthday Cake Sponge is a traditional British-style cake made from a basic all-in-one batter of butter, sugar, eggs, and self-raising flour. It’s baked until golden, soft, and airy, then layered with buttercream or jam for the perfect celebratory finish. This cake forms the foundation for many birthday designs and is loved for its light texture and delicate sweetness.
225g self-raising flour
225g unsalted butter (softened)
225g caster sugar
4 large eggs
2 tsp baking powder
2 tbsp milk
1 tsp vanilla extract
For filling and decoration (optional):
150g butter (softened)
300g icing sugar
1 tsp vanilla extract
2 tbsp milk
Jam, sprinkles, or fresh fruit (for garnish)
Preheat the oven to 180°C (160°C fan). Grease and line two 20cm round cake tins with baking paper.
Place all the cake ingredients—flour, butter, sugar, eggs, baking powder, milk, and vanilla—into a large bowl. Beat together using an electric mixer for about 2 minutes until light and creamy. The batter should drop easily from a spoon.
Divide the mixture evenly between the prepared tins and smooth the tops. Bake for 25–30 minutes or until golden and springy to the touch. A skewer inserted into the centre should come out clean.
Leave the cakes to cool in the tins for 5 minutes, then transfer to a wire rack to cool completely before filling or decorating.
Beat the softened butter until smooth. Gradually add icing sugar, mixing until fluffy. Stir in the vanilla extract and milk to achieve a spreadable consistency.
Place one sponge layer on a plate and spread with jam or buttercream. Sandwich with the second sponge and spread the remaining buttercream over the top and sides. Decorate with sprinkles, fresh berries, or birthday candles.
Find it online: https://maryberrycooks.co.uk/mary-berry-birthday-cake-sponge/