1 to 2 teaspoons vegetable oil 8 unpeeled red potatoes, cut into cubes 1 large red onion, finely chopped ½ cup butter, chopped ½ cup shredded Swiss cheese ¼ cup grated Parmesan cheese ½ teaspoon garlic powder Salt and pepper to taste
Grill over hot coals for 25 minutes per side.
Brush large sheer heavy-duty foil with oil.
Place potatoes and onion in center of foil.
Add butter, Swiss cheese, Parmesan cheese, garlic powder, salt and pepper; mix gently.
Fold and seal foil; double wrap with heavy-duty foil.