Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      cup           mayo
   3      tablespoons   bottled horseraddish cream -
   1      tablespoon    sugar -- or
   2      packages      equal

Preparation:

Mix all well. Keep refrigerated, tightly covered to use in 2 weeks. Do not freeze. Source: Gloria Pitzer.