Place the chocolate pieces in a small microwave-safe bowl. Melt them in 2 or 3 30-second sessions, stirring after each session.
Use a rubber spatula to mix in the coconut oil and sweetener. Mix until smooth.
Add the coconut flakes and mix to coat the flakes thoroughly with the melted chocolate.
Spoon the mixture into the paper liners. Freeze for 15 minutes to set.
Video
Notes
If using sweeter chocolate, or a sweetener other than stevia, the nutrition info will obviously change. Store these clusters in an airtight container at room temperature for up to five days.