Whittingham Buttons - cooking recipe

Ingredients

6 ounces butter (175g)
3 ounces icing sugar (75g)
6 ounces plain flour (175g)
2 ounces custard powder (50g)

Preparation

Cream the butter and icing sugar (which I believe is also known as powdered sugar or confectioners sugar) until light and fluffy.
Add the flour and custard powder, and mix to a firm dough.
Take spoonfuls of the mixture and roll into balls about the size of a walnut.
Place the balls on a greased baking sheet and flatten slightly with a fork.
Bake at 350F (180C) for 10 to 15 minutes, until lightly golden.
Cool on a wire rack.