Heat oven to 190C and butter two 20cm sandwich tins and
line with non-stick baking paper.
beat 200g caster sugar, 200g softened butter, 4 beaten eggs,
200g self-raising flour, 1 tsp baking powder and 2 tbsp
milk together until you have a smooth, soft batter.
Divide the mixture between the tins, smooth the surface
with a spatula or the back of a spoon.
Bake for about 20 mins until golden and the cake
springs back when pressed.