Grease a small casserole dish (1 ½ quarts) ⅔ full with sliced apples sprinkling cinnamon to taste. I do not usually add any sugar to the apples, since the topping/crust is quite sweet and that makes the dish sweet enough
Topping
Cream butter and brown sugar. Add the flour and rub to a crumbly mixture.
Sprinkle mixture over the apples.
Bake at 350 °F for about 40 minutes or until apples are bubbly. Serves 6.