Cook potatoes in their jackets until soft.
Cool, peel, and dice. Mix potatoes gently with the remaining 5
ingredients; then add to the dressing.
DRESSING: 2 eggs, well beaten 3/4
cup sugar, 1 tsp cornstarch, salt to taste, 1/4 to 1/2 cup vinegar (to taste),
1/2 cup cream or evaporated milk, 1 tsp mustard, 3 Tbsp butter softened, 1 cup
mayonnaise.
MIX eggs with sugar, cornstarch and salt. Add vinegar, cream and
mustard. Cook until thickened.
Remove from heat and beat in butter. Add mayonnaise and mix until
smooth. Add potato mixture to the cooled dressing, folding gently
together.