Apple Crisp

From: Andrea...
Mix together and set aside:
8 cups sliced apples
2/3 cup sugar
1 t. cinnamon
4 T melted butter
Mix:
1 1/2 cups flour
1 1/2 cups brown sugar
1 1/2 cups oatmeal
1/4 t. baking soda
1/4 t. baking powder
1/2 t. salt
3/4 cup melted butter
Place the apple mixture in a greased 9X13 dish, top with the flour mixture and bake at 350 degrees for 45 minutes.