6-8 sm. potatoes
Salt and pepper to taste
1/4 c. butter
1 tsp. mustard
2 tbsp. mayonnaise
1/2 c. chopped cucumber pickles
2 hard boiled eggs, chopped
Vinegar to taste
Sm. onion, chopped

Peel potatoes, cut in slices and cook until tender. Drain water, mash and add above ingredients.