Bar-be-que Sauce Pork or Chicken

1 c. catsup
½ c. vinegar
½ c. water
Meat (I use boneless skinless chicken breast or pork chops)
1 onion chopped
½ c. brown sugar
Brown meat and put in the crock pot. Combine the rest of the ingredients and simmer in a saucepan for 20 minutes. Pour sauce over meat. Cook on high for 5 hours or low for 8 hours. It tastes great over rice or baked potatoes.