Instant Pot Chipotle-Apricot Pulled Pork BBQ Sandwich

INGREDIENTS

1 1/2 cups

diced onion

1 1/3 cups

water

1/2 cup

apple cider vinegar

4 lb

boneless pork shoulder (Boston butt), trimmed and cut into 2-inch pieces

to 2 chipotle chiles, canned in adobo sauce

1/2 cup

apricot fruit spread

1/2 cup

barbecue sauce

1 tbsp

grated orange rind

1/4 tsp

salt

whole-wheat hamburger buns, toasted