This is a great change from candied sweet potatoes. The apples add sweetness without too much sugar, and the sage is a perfect companion seasoning. Serve with poultry or pork. Remove from pan, drain and rinse with cold water to stop cooking. Heat 3 tablespoons butter in large fry pan over medium-high heat.
Fry apple slices in batches until lightly browned on each side.
Remove from pan and set aside. Layer potatoes and apples alternately in a buttered or sprayed 8x8-inch baking dish, starting with an apple layer and ending with sweet potatoes. The layers are best if angled so that no layer is completely covered. Sprinkle with the sage, cinnamon, salt, pepper, melted butter and maple syrup. Remove cover and continue baking until browned.