01 -
Set your grill to low heat, about 300-325°F. For charcoal, make sure the coals are nearly gone and keep the heat on one side.
02 -
Slice the bread rolls lengthwise so tops and bottoms stay together. Place them on a foil-covered tray or pan.
03 -
Spread 2/3 of the chocolate chips on the bottom layer, add marshmallows, then the rest of the chocolate chips.
04 -
Place the foil pan on the grill, close the lid, and let it cook for 4-10 minutes. Watch for melted chocolate and soft marshmallows.
05 -
Put the top buns back on. Brush the tops with melted butter, sprinkle graham cracker pieces and sea salt if you like. Serve while warm.