Melt 1 tbsp of coconut oil with white chocolate chips in the microwave, heating in 30-second intervals and stirring until smooth.
Repeat the melting process with the sugar-free chocolate chips and the remaining 1 tbsp of coconut oil in a separate bowl.
Add 26 drops of peppermint extract to the melted white chocolate and stir until well combined.
Pour the dark chocolate onto a baking sheet lined with aluminum foil, spreading it into a 1/4 inch thick layer. Place into the freezer for 10 minutes to set.
Once the dark chocolate has set, pour the peppermint-infused white chocolate on top, spreading evenly. Freeze until completely firm, about 20-30 minutes.
Break the hardened bark into irregular pieces when ready to serve.
Notes
Nutrition information is an estimate, calculated automatically. Values vary with brands, substitutions and portion sizes.