Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      pound         confectioner's sugar
   3      tablespoons   butter or margarine -- softened
   2      teaspoons     peppermint extract -- (2 to 3)
     1/2  teaspoon      vanilla extract
     1/4  cup           evaporated milk
  12      ounces        semisweet chocolate chips -- (2 cups)
   2      tablespoons   shortening

Preparation:

In a bowl, combine first four ingredients. Add milk and mix well. Roll into 1-in. balls and place on a waxed paper-lined cookie sheet. Chill for 20 minutes. Flatten with a glass to 1/4 in.; chill for 30 minutes. In a double boiler or microwave-safe bowl, melt chocolate chips and shortening. Dip patties; place on waxed paper to harden.