Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   6                    hard boiled eggs
     1/4  cup           mayonnaise
   1      teaspoon      vinegar
   1      teaspoon      prepared mustard
   1      dash          salt
          dash          pepper

Preparation:

Halve eggs lengthwise. Remove yolks and mash with remaining ingredients. Refill whites.