Prep the Bologna: Rub a thin layer of mustard over the peeled and scored bologna. Spread a thin layer of Momofuku Sweet & Savory Korean BBQ Sauce on top.
Add a generous spoonful of Chili Crunch Hot Honey and massage it into the bologna, making sure it gets into the score marks.
Sprinkle evenly with barbecue rub. Reserve any sauce that drips off for basting.
Smoke the Bologna: Preheat smoker to 275°F with hardwood. Place bologna in the smoker, brushing occasionally with reserved sauce. Cook until the internal temperature reaches 140°F.
Remove from smoker and rest for 10–20 minutes.
Build the Sandwich: Slice bologna into 1-inch thick steaks. Sear each steak in clarified butter until browned, then top with American cheese and let it melt.
Toast the buns.
Assemble sandwiches with seared bologna, cheese, a swirl of Momofuku Sweet & Savory Korean BBQ Sauce, and (if desired) mustard, pickles, and onion.
