In a small bowl combined garlic powder, onion powder, pepper, and salt.
Unpackage the ribs and sprinkle the above seasoning mix onto the ribs.
Place 1 cup of water in your Instant Pot and set on Saute mode to warm up your pot.
Place seasoned ribs on the trivet insert inside your Instant Pot.
Pour in an entire bottle of 16 oz sugar-free BBQ sauce on top of the ribs in the pot.
Secure the pot lid and set the steam valve to sealing.
Cook ribs for 45 minutes on manual high.
Once done quick release if you'd like (carefully) or wait for Instant Pot to naturally release.
Place ribs in a large baking dish, leaving BBQ liquid in Instant Pot.
Turn Instant Pot back on saute mode. Whisk in 4 teaspoons of Xanthan Gum. Allow sauce to cook for up to 5 minutes to thicken.
Unplug the Instant Pot and carefully pour thickened sauce over the ribs
Serve and enjoy!