Mustard Sauce Or Dip - cooking recipe

Ingredients

1/2 c. tomato soup
1/2 c. sugar
1/2 c. butter or margarine
1/2 c. prepared mustard
1/2 c. vinegar
3 egg yolks

Preparation

Add vinegar to rest of mixture and cook in a double boiler slowly or until thick.
Good hot or cold.
Wonderful on ham.