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| ground beef: 1.5 lbs |
| graham cracker crumbs: 1 cup |
| salt: 1 1/4 tsp |
| black pepper: 1/4 tsp |
| eggs: 1 (large//beaten) |
| onions: 1 (chopped) |
| tomato sauce: 1/2 cup |
| ketchup: 3/4 cup |
| light brown sugar (packed): 2 Tbl (firmly packed) |
| water: 1 cup |
| yellow mustard: 2 Tbl |
| distilled vinegar: 2 Tbl |
Credit: Food.com