Place butter into stand mixer and beat until well combined. Slowly add powdered sugar, peppermint and candy cane pieces. Beat until combined, but be cautious to not over mix. Remove and store in an airtight container for up to 7-10 days. If you refrigerate, thaw to room temperature before using. Use frosting for your favorite cakes, cupcakes and cookies....and crackers...and with a spoon. Makes Enough frosting for 12 cupcakes or a 9 inch cake.