Preheat the charcoal grill until the coals are covered with gray ash
Set up two heat zones by piling coals on one side and leaving the other side cooler
Clean the grill grates
Lightly oil the grill grates
Form burger patties slightly wider than the buns
Make a small indentation in the center of each patty
Season both sides of the patties with salt and pepper
Place the patties on the hot side of the grill
Close the lid if using one
Grill for about 3 to 5 minutes on the first side
Flip the burgers once
Grill for another 3 to 5 minutes for medium doneness
Move burgers to the cooler side if flare-ups occur
Add cheese during the last minute if desired
Check internal temperature for doneness
Remove burgers from the grill
Let burgers rest for a few minutes
Toast the buns on the grill if desired
Assemble and serve the burgers