Step 1

Prepare 6 sheets of foil 12 inches long.

Step 2

Build your sandwiches by dividing the ham between the rolls with 1 slice of cheese on each.

Step 3

Place 2 sandwiches onto each piece of foil.

Step 4

Whisk together the butter, mustard, onion and brown sugar. Pour evenly over the sandwiches.

Step 5

Fold the sides of each packet up and seal closed.

Step 6

Place on warm coals, turn frequent, and cook 10-15 minutes or until cheese is melted and bread is lightly toasted. (I cook mine on the grill on low heat.)