In a small saucepan, combine the brown sugar, butter and corn syrup; cook and stir over medium heat until thickened. Pour into a greased 13-in. x 9-in. baking dish; top with half of the pecans, a single layer of bread and remaining pecans. Arrange apples and remaining bread over the top.
In a large bowl, whisk the eggs, milk, cinnamon, vanilla, salt and nutmeg. Pour over bread. Cover and refrigerate overnight.
Remove from the refrigerator 30 minutes before baking. Bake, uncovered, at 350° for 35-40 minutes or until lightly browned.
In a small saucepan, combine the sauce ingredients. Cook and stir over medium heat until thickened. Serve with French toast. Yield: 6 servings.