Brown:

1 lb. hamburger
2 tbsp. Crisco

Add:

1 lg. finely chopped onion
1 lg. finely chopped green pepper
2 tbsp. sugar
2 tbsp. prepared mustard
1 tbsp. vinegar
1 tsp. salt
3/4 c. ketchup or tomato paste

Cover and let simmer about 1/2 hour or so.