Step 1

Set the oven to 180C. Butter 2 sandwich tins with a 20cm diameter

Step 2

Cream the butter and sugar together until light and fluffy, and then slowly add the beaten egg.

Step 3

Fold in the sifted flour and spoon the mixture into the prepared cake tins

Step 4

Bake for 20 minutes. Leave to cool and then remove from the tins

Step 5

Whip the cream until thick and use it to fill the sponge with the jam

Step 6

Dust liberally with icing sugar to serve