Instant Pot Beef Stew

Name: Instant Pot Beef Stew
Ingredients: 2 lb. (1 kg) boneless beef chuck, cut into 2-inch (5-cm) cubes; Kosher salt and freshly ground pepper; 2 Tbs. extra-virgin olive oil; 1 yellow onion, diced; 2 garlic cloves, minced; 2 carrots, cut into 1-inch (2.5-cm) pieces; 1 lb. (500 g) russet potatoes, cut into 2-inch (5-cm) pieces; 3 cups (24 fl. oz./750 ml) beef broth; 2 Tbs. tomato paste; 2 Tbs. Worcestershire sauce; 2 Tbs. all-purpose flour; 1 Tbs. sherry vinegar; Chopped fresh flat-leaf parsley for garnish