Cook Bacon in pan, remove when crispy and save 2 tsp of drippings.
Fry Onion in Bacon drippings.
Add Potato and cooked onion to slow cooker. Add Water, Broth Salt and Pepper.
Cook LOW for 8 Hours
Stir in Milk and ¾ C Cheese.
Cook HIGH for 20 min
Serve and sprinkle Bacon and remaining Cheese on top.- Add Chives and Sour Cream if desired.