01 -
Chop the ribs along the bone and pass around extra sauce if anyone wants more.
02 -
Right before the ribs are done in the cooker, set your broiler to high with the rack near the top. Lay some foil on a big tray. Spread your ribs on it and coat them with a bunch of barbecue sauce. Broil just a couple minutes, watching closely so the sauce bubbles but doesn’t burn.
03 -
Twist the lid on and make sure it’s sealed. If you’ve got baby back ribs, cook for 23 minutes at high (a couple extra minutes for really thick or extra racks). Let the pressure fall for 5 minutes on its own, then carefully open the valve. Cooking spare ribs instead? Set to 35 minutes on high and let the pot come down to normal pressure naturally. That'll take close to 15 minutes.
04 -
Drop the metal rack into the bottom of your Instant Pot. Pour in water, vinegar, and that dash of liquid smoke. Stand your ribs up along the trivet so the curve hugs the pot.
05 -
Dump brown sugar, paprika, pepper, salt, onion powder, chili powder, garlic powder, and cayenne into a bowl. Mix it up! Sprinkle this all over your ribs, patting the mix on and making sure it sticks everywhere.
06 -
Give the ribs a rinse in cold water and blot them totally dry with paper towels. If there’s still that papery skin on the back, poke under it with a blunt knife. Grab it with a paper towel and pull it clean off. Toss it out.