Champagne Mustard Sauce - cooking recipe

Ingredients

1/2 cup Coleman's dry mustard
1 cup sugar
3 eggs
2/3 cup champagne vinegar

Preparation

Mix together the dry mustard and sugar till combined.
Stir in the eggs one at a time till all are added.
Add the champagne wine vinegar and mix well.
Cook over double boiler stirring till thick.
Store in the fridge.
The notes also say it can be cooked in the microwave on 8 power, stirring frequently till thick.