RaeAnne got this recipe off the Internet. These are good, but rich.
3 2/3 cup powdered sugar (1 pound)
1/4 cup cocoa
1/3 cup butter
1/3 cup corn syrup
1 – 2 teaspoons peppermint extract
Sift together the powdered sugar and cocoa; set aside. In a large mixer bowl on medium speed beat butter, corn syrup, and peppermint extract until well blended. Gradually beat in 1 to 2 cups of cocoa mixture until well blended and smooth.
On wax paper pat or roll out to 1/4 inch thickness. With small cookie cutters, cut into desired shapes. You can put some crushed peppermints or spearmint candies on top. Store in a tightly covered container in a cool place, or in refrigerator.