4 egg yolks
1 teas. Salt
2 teas. Dry mustard
6 Tbl. Vinegar
3 cups salad oil
3 Tbl. Flour or cornstarch
1 cup boiling water
2 Tbl. Sugar
1/4 cup vinegar
1 Tbl. Salt

With mixer blend egg yolks, 1 t. Salt., 2 T. sugar,
and 2 T., vinegar. Very slowly add 1 cup oil, a few
drops at a time, and mix thoroughly. Add remaining oil,
a little faster but be careful to blend each addition
before adding more oil. When all oil has been added,
add 4 T. Vinegar. Now put remaining ingredients
in a saucepan and cook to a smooth paste. Add this
hot mixture to the mayonnaise and blend well.
Pour in a container & cool in the refrigerator.
Makes slightly more than 1 quart.