Here are some more "recipes for a large crowd" Again, from "Taste of Home"

In a Dutch oven, combine brown sugar, mustard and flour; mix well. Fold in the raisins. Stir in vinegar and water; bring to a boil. Reduce heat; simmer, uncovered, for 2 to 2/12 hours or until mixture is like syrup, stirring occasionally. Serve over hot baked ham slices. Yield: 100 servings.