
Season the ground beef with the garlic, apple wood salt, Worcestershire sauce, coffee rub, and black pepper. Knead the ground beef with your hands until the seasonings are fully combined.
Divide the ground beef into 6 equal portions and shape them into 3/4 inch thick patties.
Chill the patties in the refrigerator while you prepare the grill.
Light 30 to 50 charcoal briquettes in a chimney starter until coals are ashed over. Alternatively, drench 1/4 cup of lighter fluid over the briquettes and allow it to sit for 5 to 10 minutes before carefully setting them aflame using a lighter. Keep the lid off while the charcoal catches fire.
The grill is ready when the coals have turned grey and ashy in color. Do not grill if the charcoal briquettes are still black. This may take 25 to 30 minutes.
Clean and oil the grill grate and set it into the grill.
Move to indirect heat, close the lid, and cook for another 4–6 minutes, or until internal temperature reaches130°F (54°C) for medium-rare, 140°F (60°C) for medium, or 160°F (71°C) for well-done.
Optionally, add your choice of cheese during the last minute or two and cover the grill to melt.
Let burgers rest for 2–3 minutes off the grill before serving them on the toasted buns with your choice of toppings.