Perfect Peppermint Patties

Grrrrrgh!
Course : Microwave
From: HungryMonster.com
Serves: 60
 

Ingredients:

1 pound confectioners 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.