To create the filling, chop your jazz apple into small cubes. Place the apples into your baking dish and add your melted butter, cinnamon, raw sugar, and lemon juice on top and mix well.
To create the crumble topping, combine your all purpose flour with the cinnamon, sugar, and melted butter. Gently mix with your hands to form small "clumps."
Layer the crumble topping on top of the apple mixture.
Then, bake the apple crumble at 350 degrees for 25-30 minutes in the toaster oven.
Serve with vanilla ice cream and enjoy!
