In a small bowl, combine the brown sugar with all of the spices. Mix them thoroughly.
Trim excess fat and silver skin from the rack of ribs and cut them into smaller pieces, enough to fit into your air fryer.
Rub the ribs generously with your homemade BBQ seasoning on the meat side as well as the rib side.
Marinate the ribs for 1-2 hours in the fridge (optional, but it will add more flavor).
Preheat the air fryer to 370 degrees F.
Remove the ribs from the fridge and arrange the ribs in a single layer in the air fryer tray.
Cook them at 370°F for a cooking time of 12-15 minutes.
Mist the ribs with broth or apple juice. Flip and rotate the ribs to even out the cooking.
Cook for another 12-15 additional minutes until the internal temperature of the ribs reaches 145°F. Mist them again halfway through.
Brush the front, back, and sides of the ribs with the additional BBQ sauce and cook them for an additional 3-5 minutes to caramelize the glaze.
Let the air fryer BBQ ribs rest for about 10 minutes before slicing between bones.
Serve a delicious rib dinner with extra BBQ sauce and favorite sides.