Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
  12      cups          packed brown sugar
     3/4  cup           dry mustard
     3/4  cup           all-purpose flour
   6      cups          raisins
   6      cups          vinegar
   6 1/2  quarts        water

Preparation:

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 2-1/2 hours or until mixture is like syrup, stirring occasionally. Serve over hot baked ham slices.