- 1/2 cup roasted whole coffee beans
- 1 (11.5 ounce) package milk chocolate chips
- 1 tablespoon shortening, or more if desired (optional)
- 11 1/2 ounces dark chocolate chips
- Line a 9×14-inch baking sheet with a silicone baking mat.
- Place coffee beans in a food processor and pulse a few times just until coarsely chopped.
- Melt milk chocolate in top of a double boiler over simmering water, stirring frequently and scraping down the sides with a rubber spatula to avoid scorching, about 5 minutes. Add shortening to make melted milk chocolate smoother; stir until smooth. Stir coffee beans into melted milk chocolate until coated.
- Pour milk chocolate mixture onto the prepared baking sheet, spreading mixture to the edges. Refrigerate.
- Melt dark chocolate in top of a double boiler over simmering water, stirring frequently and scraping down the sides with a rubber spatula to avoid scorching, about 5 minutes. Add shortening to make melted dark chocolate smoother; stir until smooth. Remove from heat.
- Pour melted dark chocolate over refrigerated milk chocolate mixture, spreading evenly over the top. Refrigerate until set, 10 to 15 minutes.
- Peel the silicone mat from the bottom of the chocolate mixture and place onto a work surface. Cut into pieces using a sharp knife. The bark will crack and break as you go.