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| spaghetti/marinara sauce: 1 1/2 cups (divided) |
| ground beef, lean: 1.5 lbs |
| italian seasoned bread crumbs: 1/2 cup |
| onions: 1 (minced) |
| eggs: 1 (large) |
| salt: 1 1/2 tsp |
| black pepper: 1/4 tsp |
| light brown sugar (packed): 1 Tbl |
| distilled vinegar: 1 1/2 Tbl |
| yellow mustard: 1 Tbl |
| worcestershire sauce: 2 Tbl |
Credit: Food.com