Crisps, crumbles, and cobblers are similar types of baked desserts with a fruit filling. They share similar ingredients in the topping, but there are some common differences. A crisp topping typically contains oats, whereas a traditional crumble topping is made with only flour, butter, and sugar. A cobbler topping also contains flour, butter and sugar, but often contains milk and baking powder for a more light fluffy topping.