Apple Crisp

¾ cup butter or margarine
¾ cup brown sugar
¾ cup rolled oats
¾ cup flour
1 tsp cinnamon
3 or 4 apples
Peel apples and and slice thinly. Place in baking dish. Mix butter, brown sugar, oats, cinnamon, flour. Sprinkle over top. Bake at 350 for around 40 minutes or until apples feel soft when poked with a fork.