Easy Apple Crisp

Preheat oven to 375°. Place apples in a large bowl. Combine sugar and 1/2 teaspoon cinnamon; sprinkle over apples and toss to coat. Transfer to a greased 13x9-in. baking dish. Combine flour, brown sugar, oats, baking powder, nutmeg and remaining cinnamon; cut in butter until mixture resembles coarse crumbs. Sprinkle over apples. Bake until apples are tender, 50-60 minutes. Serve warm with vanilla ice cream, if desired.