Mustard Sauce - cooking recipe

Ingredients

3 egg yolks
1/2 c. sugar
1 can tomato soup
1/2 c. mustard
1/2 c. vinegar
1/2 c. butter

Preparation

Cook all ingredients in a double boiler for 1/2 hour.
This would be a wonderful addition to a special ham dinner.
Serves 18 nicely.