3 eggs
1/2 c. sugar
1/4 c. flour
1/4 c. vinegar
1/2 c. water
1/4 c. mayonnaise
1/2 tsp. onion powder
Pinch of dry mustard
1/4 stick butter

Beat eggs well. Add sugar, flour, vinegar, water, mayonnaise, onion powder and mustard. Beat again. Add butter. Cook until thick on low heat. Mix into cold cubed potatoes. Makes enough dressing for 2 3/4 pounds new potatoes.