Preheat the air fryer to 380°F (193°C) for 3–5 minutes.
A hot basket helps the sausages brown right away.
Mix the sauce: In a small bowl, stir together BBQ sauce, mustard, honey or brown sugar, garlic powder, and black pepper. Set aside.
Prep the sausages: If using raw sausages, pat them dry. If using pre-cooked or smoked sausage, you can leave them whole or slice them into 1-inch pieces for more caramelized edges.
Lightly oil the basket if your sausages are very lean or your basket tends to stick.
Avoid over-oiling—just a thin film.
Air fry the sausages: Arrange in a single layer with a little space between each piece. Cook for 8–10 minutes for pre-cooked sausages, flipping halfway. For raw sausages, cook 12–14 minutes, flipping halfway, until browned and cooked through.
Check doneness: For raw sausages, the internal temperature should reach 160°F (71°C) for pork/beef and 165°F (74°C) for chicken or turkey.
Pre-cooked just needs to be hot and browned.
Sauce and finish: Brush or toss the sausages with the BBQ sauce. Return to the air fryer for 2–4 minutes to set and lightly caramelize the glaze. Keep an eye on them so the sugars don’t burn.
Rest and serve: Let the sausages rest for 2 minutes.
Slice and serve in buns, over rice, or with a side of slaw and pickles. Garnish if you like.