Step 1

Peel, core and slice apples.

Step 2

Preheat oven to 375.

Step 3

Layer apples into baking dish.

Step 4

Mix together flour, brown sugar, oats and cinnamon in a bowl.

Step 5

Add in vanilla and cut in butter with a pastry blender or fork.

Step 6

Work until mixture forms large crumbs.

Step 7

Sprinkle over apples.

Step 8

Bake 30-35 minutes or until topping is browned and apples are soft.