1 ½ (12 ounce) bottles bottled sweet chili sauce (such as Heinz® Premium Chili Sauce)
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6 tablespoons water
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3 pounds chipped chopped ham
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12 sandwich buns, split
Instructions
Stir together the vinegar, grape jelly, paprika, mustard powder, brown sugar, bottled sweet chili sauce, and water in a 2-quart saucepan over medium heat. Bring to a boil, turn heat to low, and simmer for 5 minutes.
Mix in the chipped ham and stir to combine with sauce. Refrigerate overnight.
The next day, bring the sauce and ham slowly to a simmer over low heat and cook 1 hour, stirring occasionally.