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| onions: 1 (chopped) |
| salted butter: 2 Tbl |
| distilled vinegar: 2 Tbl |
| light brown sugar (packed): 4 Tbl |
| lemon juice: 4 Tbl |
| ketchup: 1 cup |
| parsley: 1/2 tsp |
| yellow mustard: 1/2 Tbl |
| water: 1/2 cup |
| worcestershire sauce: 3 Tbl |
| salt: 1/4 tsp |
| cayenne pepper |