Preheat the grill to medium heat. Slice the potatoes as thinly as possible and layer on aluminum foil with the onion, garlic, basil, butter or margarine and salt and pepper to taste. Wrap the foil around the vegetables to form a packet. Place the packet on heated grill and cook for 20 for 40 minutes...
4 red potatoes
1 onion, chopped
4 cloves of garlic, chopped
1/4 cup of chopped fresh basil
1/4 cup of butter
salt and pepper to taste
Preheat the grill to medium heat. Slice the potatoes as thinly as possible and layer on aluminum foil with the onion, garlic, basil, butter or margarine and salt and pepper to taste. Wrap the foil around the vegetables to form a packet. Place the packet on heated grill and cook for 20 for 40 minutes, depending on the thickness of the potato slices. Turn packet halfway through cooking.
Source : http://chillapple.blogspot.com/2009/11/scalloped-potatoes-for-bbq.html