fuel the fire get the most out of your grilling experience with these easy-to-follow tips and temperatures are easily grills use charcoal briquettes for fuel and take slightly longer to heat but impart great smoky flavor to food safety only use grills outdoors and place them at least overhangs or branches tasty topper these perfectly charred onions provide sensational smoky burger or as a side grilled onion slices total time 30 minutes serves 12 preheating always heat grills to your desired temperature include a thermometer for until they're mostly gray in color skewers additional for serving fat boy premium all-purpose rub skewers and serve with additional butter cleaning after each use remove leftover food scraps by brushing the still-warm grate with a stainless-steel brush this helps prevent food from sticking during the next use ultimate grilling onions fat boy rub select varieties