Step 1

Cream butter and sugar until light and fluffy.

Step 2

Gradually beat in eggs, mix well after each addition.

Step 3

Gradually fold in sifted flour and custard powder.

Step 4

Place teaspoonfuls of mixture onto a lightly greased oven tray. Press down with a fork.

Step 5

Bake at 180C for 10-15 minutes.

Step 6

Cool biscuits on a cake rack.

Step 7

Filling: Cream butter, icing sugar, and custard powder until light and fluffy.

Step 8

Add orange juice and rind and beat until smooth.

Step 9

Spread biscuits with filling and sandwich together.

Step 10

Dust with icing sugar.