Lightly grease 4 mugs with straight sides
1tbs jam in base of each mug
50g butter melted
ΒΌ cup sugar
1 egg
1 cup plain flour
1tsp baking powder
1/2 cup milk
Whisk egg and sugar. Mix in flour and baking powder. Add milk.
Cook in microwave in for 3 1/2 to 4 minutes. Stand one minute