In a heavy small saucepan, heat and stir the 3/4 cup chopped candies until melted and smooth. Remove from heat. Cool about 15 minutes.

In a large bowl, beat shortening with an electric mixer on medium to high speed for 30 seconds. Add sugar, baking powder, and salt; beat until well combined. Beat in cooled chocolate, eggs, and vanilla. Beat or stir in flour. Cover and chill 3 hours or until dough is easy to handle.

Preheat oven to 350 degrees F. Using about 1 tablespoon of dough per ball, shape dough into 1-1/4-inch balls. Place balls 2 inches apart on an ungreased cookie sheet. Bake in the preheated oven for 10 minutes or until edges are set (tops should crackle). Sprinkle a few candy pieces on top of each cookie; do not press candies into cookies. Bake 1 minute more. Cool on wire racks. Makes about 36 cookies.

Layer cookies between sheets of waxed paper in an airtight container; cover. Store at room temperature for up to 24 hours or freeze for up to 3 months.