Fill the auger with your applewood pellets and set your smoker to 225 degrees F. When the smoke becomes wispy and blue it's ready for the burgers.
Season the burger patties on both sides with salt and pepper.
4 burger patties, 1 tablespoon kosher salt, 2 teaspoon black pepper
Place the burgers onto the smoker's grates and smoke for at least 35 minutes, then check the internal temperature. You're looking for 145 degrees F for medium, up to 160 for well done. *If you're going to sear the burgers as well, remove the burgers 10 degrees earlier (135 degrees for medium and 150 for well done).
OPTIONAL: Turn the grill to 400 degrees F or use a cast iron skillet on the stove over medium high heat and sear the burgers for 2-3 minutes on each side to gain some char and color.
Add the slices of cheese to melt five minutes before the end of the cook on the smoker (or right after flipping the burger while searing during the optional step).
4 slices American cheese
OPTIONAL: Toast the buns by spreading butter on their cut sides and toasting on a pan over medium heat on the stove until browned.
4 burger buns, 2 tablespoon butter
Assemble the smoked burgers with the buns and choices of toppings. Serve hot.
Toppings of your choice