1 lb. ground beef
1/4 c. diced onion
1/2 tsp. salt
2 tbsp. brown sugar
1/2 c. ketchup
2 tbsp. prepared mustard
1 tbsp. vinegar

Brown onions and ground beef in heavy skillet. Add brown sugar. Combine rest of ingredients and add to cooked meat. Simmer 15 or 20 minutes.