Buffalo Chicken Lettuce Wraps (Slow Cooker, Instant Pot)

For the chicken:

• 24 oz 3 boneless skinless chicken breasts
• 1 celery stalk, diced
• 1/2 onion, diced
• 1 clove garlic, minced
• 16 oz fat free low sodium chicken broth
• 1/2 cup cayenne pepper sauce, I used Frank’s
• For the wraps:
• 6 large lettuce leaves, Bibb or Iceberg
• 1 1/2 cups shredded carrots
• 2 large celery stalks, cut into 2 inch matchsticks