Hot Mustard

A while back I got a recipe for hot mustard.  This is great on roast beef sandwiches cold or hot.

• 1/2 cup colmans mustard this is on the spice isle
• 1/2 cup sugar
• 1/2 cup cream
• 2 teaspoon flour
• teaspoon vinegar

Mix everything except vinegar together in a small pot.  Warm it slowly do not allow to boil.  Stir constantly until everything is mixed together and sugar is dissolved.  Let cool stir in vinegar.  Keep refrigerated in air tight container.