Grandpa'S Mustard Sauce - cooking recipe

Ingredients

2 c. whipping cream
1 Tbsp. flour (heaping)
3 to 4 Tbsp. dry mustard
1/2 c. sugar
2 egg yolks
1/3 c. white vinegar

Preparation

Mix first five ingredients.
(Make a paste of cream, flour and mustard to lessen lumps.)
Cook slowly in double boiler*, stirring until thick, adding vinegar a little at a time.
Great on ham, macaroni and cheese, green beans or even an omelet.