I finally made this after sampling it on my sister-in-law's cookie tray a number of years ago!
16 oz. Nestle Premium White Chocolate Morsels
24 hard peppermint candies or 4 medium-size candy canes
Cover a cookie sheet with waxed paper, aluminum foil or parchment paper. Place morsels in a microwaveable bowl. Microwave uncovered on high for 2-3 min, stirring ever 30 seconds, until almost melted. Stir until smooth.
Place peppermint candies in a heavy plastic zip lock bag; crush with a rolling pan or the smooth side of a meat mallet. Pour crushed candies into wire strainer. Shake strainer over melted chocolate until all of the tiniest candy pieces fall into the coating; reserve the larger candy pieces. Stir chocolate to mix evenly. Spread chocolate 1/4" thick evenly on cookie sheet. Sprinkle evenly with remaining candy pieces. Lightly press candies into the chocolate. Let stand about 1 hour or until cool and hardened.