1. Place your oven rack on the lowest shelf in your oven. Preheat broiler to high heat.
2. While the broiler is preheating, place 12 of the graham crackers on a sheet pan. Top each with chocolate and then place one marshmallow on top of the chocolate.
3. Broil for one to three minutes (timing will depend on your oven). Watch your s’mores VERY carefully. They will burn quickly.
4. Remove from oven, top with your favorite toppings, and serve immediately.