In a medium microwave-safe bowl, melt Light or Dark Cocoa Candy Melts Candy according to package instructions. Stir in 2 tablespoons Peppermint Crunch.
Spread into the bottom of a nonstick 13 in. x 9 in. pan or into a roughly 13 in. x 9 in. rectangle on a larger nonstick cookie pan. Refrigerate until firm, about 5-10 minutes.
In another medium microwave-safe bowl, melt white or bright white candy melts according to package instructions. Stir in 2 tablespoons peppermint crunch.
Spread into an even layer on top of the cocoa layer and immediately sprinkle with remaining 1 tablespoon peppermint crunch. Refrigerate until firm, about 5-10 minutes.
Remove bark from pan and break into pieces to serve.