Melt 100g margarine in a large saucepan.
Stir in 1 cup of brown sugar, 1 cup of currants and 2 ripe bananas (mashed.)
Add 1 cup of cold tea and bring to the boil.
Add 1 tsp bicarb of soda, and leave to cool for a bit.
Stir in 2 cups of self raising flour, pour into a lined and greased loaf tin and bake for an hour at 180 degrees.