Easy Instant Pot Roast with Potatoes and Carrots

Ingredients

• 2-3 pounds beef chuck roast
• 3 tablespoons all-purpose flour
• salt
• pepper
• 2 tablespoons olive oil
• 1 1/2 cups beef stock or broth
• 2 tablespoons balsamic vinegar
• 1/4 cup red cooking wine (optional)
• 1 tablespoon minced garlic
• 1 teaspoon dried thyme
• 2 bay leaves
• 1 teaspoon salt
• 1/4 teaspoon pepper
• 6 red potatoes (halved)
• 1 yellow onion (cut in wedges or sliced)
• 2 cups baby carrots
• 1 tablespoon cornstarch (mixed into 2 tablespoons water)
• 3 tablespoons butter