Step 1

Pour water into Instant Pot®. Insert a steamer basket insert or trivet in the bottom of the pot. Stand 1 rack of ribs, upright, curving rack to follow curved edge of pressure cooker. Repeat with remaining racks of ribs, overlapping edges to fit all rib racks in pressure cooker. Close and lock lid. Turn vent to “Seal” position. Press “Meat” button and set cook time to 25 minutes.

Step 2

Use Natural Pressure Release for 5 minutes; then carefully open vent for Quick Release to release any remaining pressure. Carefully transfer ribs to large rimmed baking sheet lined with foil. Discard liquid.

Step 3

Preheat broiler. In saucepan, heat oil over medium heat. Sauté shallots and garlic until fragrant, about 1 minute. Add broth; bring to boil over medium-high heat. Boil until reduced to about 1 cup, approximately 15 minutes. Whisk together hoisin sauce, brown sugar, wine, cornstarch, five-spice and pepper. Briskly whisk into broth mixture; cook, stirring for 2 minutes, or until thickened.

Step 4

Reserve about 1/3 of the sauce. Brush some of the remaining sauce all over ribs on baking sheet. Broil for 8 to 10 minutes, turning and brushing with sauce, until ribs are browned and coated. Watch carefully so they don’t burn. Transfer to serving platter. Sprinkle with green onions. Serve with reserved sauce as a dip.