Boil potatoes; peel and cube. Separate whites and yellows of eggs; chop whites. Mix ... sour cream, mayonnaise, mustard, vinegar, salt, and pepper. ... dressing together with potato mixture about 20 minutes before serving.
Mix well eggs, sugar, vinegar, water, dry mustard and flour with electric mixer. ... add mayonnaise and yellow mustard. Makes approximately 1 quart. Also great for other salads.