Mayonnaise - cooking recipe

Ingredients

1 cup sugar
4 eggs
1 heaping Tbsp. cornstarch
1 tsp. dry mustard
1/2 cup vinegar
1 1/2 cup water
1 heaping tsp. butter
1 can milk

Preparation

Mix all ingredients except milk and boil until thick, stirring constantly.
Remove from heat.
Let cool.
Not cold.
Beat in milk until right thickness is attained.
Makes 1 Quart.