Sweet and Sour Cabbage

1 head cabbage, chopped           
2 medium onions                            
2 tbsp vinegar                                   
salt & pepper
paprika
3 tbsp ketchup

1)      Sauté onions in oil. Add ¼ cup water, vinegar, salt, pepper, and paprika. Add cabbage.
2)      Cover on low for 20 min.
3)      Add ketchup.