I have made the same ham sauce for years. It is so good, and, frankly, better than this one. But it takes more work. And when making a big holiday meal, I sometimes need easier. This one is easier and still very good.
Ham Sauce
1/2 cup brown sugar
1 1/2 T. mustard powder
1 1/2 cup vinegar
1/2- 1 cup water
Mix altogether in a saucepan. Cook and stir until thickened.