Rinse ribs and pat dry. Remove the thin membrane from the back of the ribs.
Cut slab into 2-3 pieces (enough so they fit into the Instant Pot) and coat with dry rub massaging it into the meat.
Place trivet (or rack) in the bottom of your Instant Pot. Add broth or water and liquid smoke if using.
Set ribs upright on the trivet (so they are not stacked on top of one another). Sprinkle with onion and garlic.
Close lid and select manual pressure and set the timer for 23 minutes (25 minutes if they’re extra meaty). Once done, allow the instant pot to natural release for 5 minutes.
Open valve to release remaining pressure.
Brush with barbecue sauce (or olive oil/salt/pepper for dry ribs) and broil or grill until slightly charred.
Source:
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