Crock Pot Diet Coke Chicken

1 cup ketchup

12 ounces Diet Coke (suggestion: or Dt. Dr. Pepper)
(6) 4 ounce boneless skinless chicken breasts
1 large onion -- sliced

Can be done in slow cooker, or pour liquid over chicken in chicken fryer skillet and cover.

Bring to a simmer and then lower the heat to low and walk away and check at 45 mins.

Crack lid a bit to allow sauce to thicken. This takes a total of about an hour.

Variations/Additions:
Packet of dry onion soup mix
Mushrooms, onions, green peppers, celery, etc.
Instead of Coke, add orange soda, ginger and garlic for an Asian dish.
Instead of Coke, use Diet Coke with Lime and salsa instead of ketchup for a Mexican dish.
Instead of ketchup, use barbecue sauce.
Instead of chicken, use pork chops or sausage.
Instead of making the chicken "BBQ", use Diet Coke and RF or FF Italian dressing. Cover with foil and bake 60-90 minutes, turning halfway through cooking.