2 lbs. hamburger
1/2 c. onion, chopped
1 c. catsup
1/4 c. prepared mustard
1 can Chicken Gumbo soup (the secret ingredients; do not omit)
1/4 c. water
1 tbsp. salt, less if wished
1/2 tsp. pepper
NOTE: You may use dry onion flakes instead of fresh onion, & then use about 1 tbsp. dry flakes)

Cook the onion in a small amount of fat, if using fresh; if using dry, just mix into the wet ingredients. Put hamburger and all other ingredients into large skillet and allow to simmer about an hour, stirring occasionally. Use to fill buns, toasted or plain. May be made up ahead of time and kept warm if a large number are to be served. This recipe also doubles easily by just doubling each ingredient.