Pre-heat your oven to between 170 and 180c
Butter two sandwich tins and line with grease proof paper
Weigh three large eggs
Weigh out the same weight as the eggs of:
Self raising flour
Caster Sugar
Softened butter/margarine
Cream the butter and sugar together.
Thoroughly whisk in one egg at a time.
Fold in the flour and one teaspoon of baking powder per 4ozs of flour.
Add one teaspoon of vanilla essence.
Pour gently and evenly into the tins.
Bake on the same shelf for about twenty to thirty minutes until the cakes are turning golden brown.
If you are not certain that it's done lightly press the middle of the cake, if it springs back it's done. You can also check with a cocktail stick inserted into the middle, if it comes away clean, it's done.
Sandwich together with ready made frosting or chocolate spread and decorate with ready made decorations or smarties (very popular around here)