Preheat oven to 350ºF. Lightly grease 8x8x2-inch pan.
In medium bowl, blend together Krusteaz Zoom Hot Cereal Mix, flour, brown sugar and cinnamon. Cut in butter with fork or pastry blender until mixture resembles size of small peas. Press half of mixture into prepared pan. Layer with sliced apples. Sprinkle remaining mixture over apples.
Bake 40-45 minutes. Serve warm with vanilla ice cream or whipped cream.