Season the chicken breasts with salt and black pepper, to taste. Place them into a 5 or 6-quart (or litres) slow cooker together with the broth/stock, celery, cream cheese, hot sauce, jalapeño pepper, and 4 oz/100g crumbled blue cheese. Cover and cook on high for 3-4 hours or 6-7 hours on low.
30 minutes before serving, remove the lid and shred the chicken using two forks.
Add the shredded Mozzarella cheese and stir to combine.
Place the lid back on and continue cooking until the cheese is completely melted.
Remove lid and garnish dip with remaining blue cheese, sliced green onions, or jalapeno, if desired.
Keep warm and serve with celery stalks and carrot sticks.
Notes
*Tip: You may need to add additional chicken broth before serving to achieve desired consistency.