I can't remember where I first saw these as I made them a long time ago but I know I made them to use up some peanut butter I found in the cupboard and I remember they went down a treat :-)
Banana and peanut butter muffins
75g butter, softened
200g caster sugar
150g crunchy peanut butter
1 ripe banana, peeled and mashed
4 eggs, beaten
250g plain flour + 1 teaspoon baking powder
Preheat the oven to 180º C and line a muffin tin with paper cases.
Cream the butter until soft in a large bowl. Add the sugar, peanut butter and the mashed banana and then beat until the mixture is light and fluffy.
Gradually add the beaten eggs to the mixture, beating continously. Fold in the flour and baking powder until combined.
Fill the paper cases until they're 3/4 full and bake for 20-25 minutes or until risen and golden.
Cool for 5 minutes before removing from the tin and leave on a wire rack to cool completely.