1 lb. hamburger
1 to 1 1/2 c. ketchup
1 tsp. sugar
1 tsp. salt
1 tbsp. dry mustard
1 tbsp. white vinegar
1 chopped onion (optional)
1/2 tsp. chili powder (optional)

Brown hamburger; drain. Add onion, if desired, and cook until light brown. Combine rest of ingredients in bowl; add to hamburger and stir well. Cover and simmer 15 to 20 minutes. Great on toasted buns.