Madeira Cake

100 g butter or margarine
125 g caster sugar
200 g self-raising flour
pinch of salt
2 eggs
30 ml milk
a few drops of vanilla essence OR a little grated lemon rind
thin strip of citron peel (optional)

Grease and line a 15 cm round cake tin.
Prepare by creaming or one stage method.

Place the mixture into the tin, smooth level and lay the strip of citron peel on top.
Bake at 180C till golden brown and a toothpick inserted in the middle of the cake comes out clean.