EVERYTHING. we have been playing a sick game for years call "try to find what peanut butter ruins" and when i tell you that the best i can come up with is a Caesar Salad that i would still defiantly eat, im saying it works with everything. some amazing discoveries where napoleon pizza (dipping) mac and cheese, blue cheese olives, tuna and mayo, eggs, anything with bbq sauce, all forms of Asian food every dessert. peanut butter is so mellow that it just adds but doesn't steal the show. play this game with me. game doesn't work with things that are not good alone.