Bo-peep biscuits

Note: These recipes use NZ measurements. 1 c = 1 cup = 250 ml. 1 T = 1 tablespoon = 15 ml. 1 D = 2 teaspoons. 1 t = 1 teaspoon = 5ml. If you're in America, you may find you need a little extra baking powder in recipes that use it.

4oz butter
4oz sugar
1 egg
6oz flour
2oz custard powder
2oz cornflour
1 t baking powder

Cream butter and sugar, add egg then dry ingredients. Place small teaspoons on greased tray. Press a hollow in the top and fill with jam. Bake at 180C for 20 minutes.

Source: Rally cook book, page 14