2 lbs. hamburger, browned & drained
1 tbsp. celery seed
Onion to taste (either raw or minced)
Salt & pepper to taste
1 can tomato soup
1 c. ketchup
1 tbsp. flour
1 tbsp. vinegar
1 tbsp. prepared mustard
1 tbsp. brown sugar

Mix and simmer for a while! Enjoy on buns.