Bar-B-Ques (Sloppy Joes)

• 1-1/2 pounds browned hamburger
• 1/4 C. chopped onion
• 2 C. ketchup
• 2 T. brown sugar
• 1 T mustard
• 1 tsp. Salt
• 1/4 C lemon juice
• 1/8 C. vinegar
• 1 C chopped celery

Mix & simmer for 1/2 hour.