Firehouse BBQ Sauce |
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Ingredients1 (46 fluid ounce) bottle ketchup
1 1/2 cups apple cider vinegar
2 cups packed brown sugar
1/2 cup butter, cut into pieces
2 tablespoons red pepper flakes, or to taste
1 1/2 cups apple cider vinegar
2 cups packed brown sugar
1/2 cup butter, cut into pieces
2 tablespoons red pepper flakes, or to taste