Line a baking sheet with parchment paper.
Melt the dark chocolate according to package directions until smooth. Stir in 1/2 teaspoon of peppermint extract.
Pour chocolate over lined baking sheet and smooth out to desired thickness.
Immediately crush 1 cup of potato chips over the dark chocolate. Set to chill in the refrigerator for 15 minutes.
Melt the white chocolate according to package directions until smooth. Stir in 1/2 teaspoon of peppermint extract.
Pour white chocolate over the dark chocolate and potato chip layer. Smooth out to desired thickness.
Immediately crush 1 cup of potato chips and candy canes over the white chocolate layer. Set to chill in the refrigerator for 15 minutes.
Break into pieces by hand. May carefully use a knife or metal spatula if desired.