What are the main differences between apple crisp and apple cobbler in terms of ingredients and preparation methods?

The main difference between Apple crisp and Apple cobbler is in the topping. Apple crisp has a crumbly topping made of flour, sugar, butter, and oats, while Apple cobbler has a biscuit-like topping made of flour, sugar, butter, and milk. Additionally, Apple crisp is typically baked with the topping on top of the fruit, while Apple cobbler is baked with the topping dropped in spoonfuls on top of the fruit.