While that cools, in a large skillet heat butter over medium heat until melted. Add apples; cook about 8 minutes or until apples are crisp-tender, stirring occasionally. In a small bowl, combine 1/2 cup of the granulated sugar, the flour, 1/2 teaspoon of the cinnamon, and the nutmeg. Sprinkle over apples. Add caramel sauce
. Cook and stir over medium-low heat for 2 minutes more. Set aside.