step 1
Grease and line a 2lb loaf tin. Melt butter, sugar and vanilla in a saucepan over a medium heat.
step 2
Remove from heat and add the mashed bananas, mix well.
step 3
Add the egg, mix well.
step 4
Stir in the flour and the milk. Once combined add the chocolate chips.
step 5
Pour into the prepared tin, sprinkle with a tablespoon of demerara sugar to give a crunch topping if liked.
step 6
Bake at 150 C fan oven (or 170 C regular, Gas mark 3) for 45 mins, until a skewer comes out clean. Leave to cool and enjoy