Instant Pot Shredded Teriyaki Chicken

Ingredients

• boneless, skinless chicken breasts
• store-bought teriyaki sauce + 1/4 cup water OR use my homemade teriyaki sauce be
• Optional garnish: roasted sesame seeds
• soy sauce
• water
• tablespoons brown sugar
• tablespoons mirin
• garlic, minced
• teaspoon ginger, grated
• tablespoons cornstarch