If you don't fancy adding chopped chocolate and nuts on top, you can add raisins, a swirl of strawberry jam or even some mini vegan marshmallows. If you need your peanut butter fudge to be gluten-free, just make sure any toppings are too! Another idea is to try drizzling some chocolate over the fudge or coating the pieces completely. White and/or dark chocolate both taste really nice paired with peanut butter. Alternatively, you can swap out 1 tablespoon of icing sugar for 1 tablespoon of cocoa powder to make chocolate peanut butter fudge.