Combine flour and baking powder

Cream margarine, sugar and eggs in a different bowl.

Mash bananas in a different bowl.

Add bananas to creamed mixture and stir.

Stir in the flour till smooth as you add a little milk. Meanwhile preheat oven to 220 degrees.

Pour the mixture into a greased baking pan and place in the oven for 40mins or till it's ready.

Insert a fork into the cake and if it comes out clean then it's ready.

Leave it to cool and enjoy.