Prep 10 mins
Cook 15 mins
- Cream butter and sugar with an electric mixer.
- Add beaten egg, gradually.
- Then mix in flour and custard powder.
- Drop half teaspoons of the mixture ona cold greasy tray and bak for 10 to 15 minutes in a hot oven.
- For the filling cream one dessertspoon butter, two tablespoons icing sugar and one tablespoon custard powder.
- Spread filling over cooled biscuits.