Instant Pot Chicken Stew

Ingredients

• 2 tablespoons olive oil
• 1 1/2-1 3/4 lbs boneless, skinless chicken thighs
• 2 tablespoons butter
• 1 medium yellow onion, diced (about 1 1/2 cups)
• 2-3 celery stalks, diced (about 1 cup)
• 2 carrots, diced (about 1 cup)
• 4 cloves garlic, minced
• 1/4 cup white wine
• 1 1/2 lbs baby potatoes, cut into bite-sized pieces
• 1/2 teaspoon dried rosemary
• 1/2 teaspoon dried thyme
• 1/4 teaspoon dried sage
• 1 teaspoon dried parsley
• 1 bay leaf
• 1 1/2 teaspoons salt
• 1/4 teaspoon pepper
• 4 cups chicken broth
• 1 1/2 cups frozen cut green beans
• 1/2 cup heavy cream
• 3 tablespoons cornstarch