2 cups brown sugar
1 1/2 cups flour
1 1/2 cups oatmeal
1-2 tsp salt
1 cup butter, cut into small chunks
6 cups peeled and cored apple slices
1 cup granulated sugar
4 tsp cinnamon
Mix the brown sugar, flour, oatmeal, salt and butter until resembles coarse crumbs. Press 1/3 of this mixture into a greased 9 x 13" pan.
Peel, core and thinly slice apple. Place in a large bowl, and add the sugar and cinnamon. Stir until well coated. Layer the apples over the crust in the pan. Top with the remaining 2/3 of the crumb mixture. Bake 375 degrees for 40 - 45 minutes, or until the apples are tender and the crust, golden brown.