1Heat oven to 375°F.
2In large bowl, stir together caramel topping and the cinnamon until blended. Add apples; toss until evenly coated. Spread in ungreased 8-inch square (2-quart) glass baking dish.
3In same bowl, mix 2/3 cup flour and the brown sugar. Cut in butter, using pastry blender (or pulling 2 table knives through mixture in opposite directions), until mixture looks like coarse crumbs. Stir in oats. Crumble mixture over apples in baking dish.
4Bake 45 to 50 minutes or until apples are tender and topping is golden brown. If desired, serve with whipped cream and additional caramel topping.