Pork Baby Back Ribs with Spice Rub and Mustard Barbecue Sauce (Instant Pot)

These fall-off-the-bone baby back ribs with sweet and tangy South Carolina - style barbecue sauce will definitely impress any hungry crowd.

Spice Rub:
1 Tbsp. mustard powder
1 Tbsp. chili powder
1 Tbsp. brown sugar
1 Tbsp. smoked paprika
1 Tbsp. sea salt
1 Tbsp. black pepper, freshly ground
2 tsp. garlic powder
2 tsp. onion powder
¼ tsp. cayenne pepper
2 baby back pork side ribs, each cut into 4 pieces (about 2 lb)

Mustard Barbecue Sauce:
1 Tbsp. butter
1 small onion, diced
3 cloves garlic, minced
1 cup yellow mustard
½ cup brown sugar
½ cup cider vinegar
¼ cup pure honey
¼ cup grainy mustard
1 Tbsp. Worcestershire sauce
1 tsp. black pepper, freshly ground

Ribs:
1 (12 oz) bottle lager beer

Spice Rub:
Stir together mustard, chili powder, brown sugar, smoked paprika, salt, pepper, garlic powder, onion powder and cayenne.

Peel off membrane from back of ribs, if needed and discard. Sprinkle ribs all over with spice rub. Transfer to baking tray. Cover with plastic wrap; refrigerate for at least 30 minutes or up to 4 hours.

Mustard Barbecue Sauce:
With lid off, select Sauté setting on Instant Pot Duo Crisp + Air Fryer and set to High Temperature. Melt butter in inner pot; stir in onion and garlic. Cook for 5-7 minutes or until softened.

Stir in yellow mustard, brown sugar, vinegar, honey, grainy mustard, Worcestershire sauce and pepper; bring to boil. Press Cancel. Select Sauté setting and set to Low Temperature. Cook, stirring occasionally, for 8 to 10 minutes or until thickened. Transfer to bowl. Let cool completely (do not clean pot).

Ribs:
Add spiced ribs and beer to inner pot. Place lid on pot and lock in place to seal. Select Pressure Cook/Manual setting on High Pressure for 15 minutes.

When pressure cooking is complete, Quick Release the pressure. Once pressure is released, remove the lid.

Using tongs, remove ribs from inner pot and drain the cooking liquid. Pat ribs dry with paper towel. Brush ribs all over with some of the barbecue sauce.

Ensure that inner pot is dry; place air fryer basket in pot.

Add ribs, in 2 batches, to the basket, standing upright. Using Air fryer Lid select Broil at 400°F for 18 to 20 minutes or until ribs are heated through and sauce starts to caramelize. Serve with any remaining barbecue sauce for dipping.

Cook's Notes: If desired, brush more sauce over ribs, halfway during the baking time.

Nutrition:
Per ¼ recipe, Calories 600, Fat 29g, Saturated Fat 10g, Cholesterol 115mg, Sodium 2510mg, Carbohydrate 51g, Fiber 6g, Sugars 40g, Protein 34g.