Built-In Relish Burgers

Ingredients
- 1 12 lb ground beef
- 1 large onion chopped
- 2 Tbsp salad oil
- 2 Tbsp mustard
- 2 Tbsp vinegar
- 2 Tbsp sugar
- 12 c catsup
- 12 c chili sauce
- 12 c pickle relish
- salt
Directions
- Brown meat and onion in salad oil until meat is crumbly
- Pour off excess oil
- Stir in remaining ingredients and simmer for 30 minutes
- Serve on buttered toasted buns
- Serves 10