Homemade peppermint bark is a holiday favorite! This easy candy is made with just a handful of simple ingredients for a treat that will make everyone feel holly and jolly.
Line a rimmed baking sheet with parchment paper. Melt semisweet chips in a bowl set over the top of a pot of simmering water, stirring to melt. Remove from heat when almost completely melted, then stir until smooth. Pour onto parchment paper and spread into a rectangle of even thickness (about ⅛ inch thick) with an offset spatula or knife. Place in refrigerator until cold and firm, about 20 minutes.
Use another bowl to melt white chocolate chips over the same pot of simmering water, until chocolate is almost melted. Remove bowl from water and stir until completely melted, stirring in peppermint extract. Let cool a little bit so it does not melt the chocolate layer when you pour it on top. Pour this over the chocolate layer and, working quickly, spread to cover.
Sprinkle with crushed candy canes.
Chill until both layers are firm. Break bark into irregular pieces, or cut with a knife into squares. Store chilled in a covered container.