1 c. mayonnaise
1 c. sour cream
Juice of 1 lemon
2 tbsp. mustard
2 tbsp. horseradish
Salt & pepper to taste

Mix well.

Boil 8 peeled and cubed potatoes. To this add 1 large onion (chopped), 5 boiled eggs (chopped). Mix together. Pour dressing over potato salad and mix well.