https://www.foodkingcostplus.com/Recipes/Detail/2542/Cran-Apple_Sweet_Potato_Packets
Yield: Makes 4 servings
Preheat oven to 450 F. or preheat grill to medium-high. Center sweet potatoes, apples and cranberries on sheet of Reynolds Wrap Heavy Duty Aluminum Foil. Sprinkle with brown sugar. Combine margarine and cinnamon; drizzle over brown sugar. Bring up sides of foil and double fold. Double fold ends to form one large foil packet, leaving room for heat circulation inside packet. Bake 25 to 30 minutes on cookie sheet in oven or grill 20 to 25 minutes, or until sweet potatoes are tender, in covered grill.
Source: Reynolds
Please note that some ingredients and brands may not be available in every store.
https://www.foodkingcostplus.com/Recipes/Detail/2542/Cran-Apple_Sweet_Potato_Packets