Do any of you bake with coconut flour?

I made what were supposed to be cookies, but the mixture was too runny so I put it in a muffin tin and they came out vaguely cake-y but a bit bland (the recipe was literally coconut flour, eggs, baking soda and butter). I might try them again with peanut butter in the centre, but does anyone have any other ideas or recipes for biscuits or cakes?

Thanks pals!