In apple crumble, the streusel topping is made from a mixture of butter, flour, sugar, and baking spices, while in apple crisp, oats are added to the same mixture for a crunchier texture.
I’d say pie is the first thing that comes to mind—but in many ways I prefer apple crisp. It’s quicker to make, less fussy, and the texture of the crispy oat topping with soft apple segments ...