Orange and Marmalade Cake

8oz, 225g self-raising flour
6oz, 175g butter
6oz, 175g demerara sugar
juico of half an orange
2 eggs
1 teaspoon baking powder
1 tablespoon marmalade
Prepare a 6/7" round tin
Mix al the ingredients well.
Put in the tin and bake for 50 minutes - to an hour.
If you wish, ice with a little icing made from some icing sugar and the remaining orange juice
Very nice with a cup of tea