01 - Line a baking sheet with parchment paper and set aside.
02 - In a medium mixing bowl, combine the chopped Medjool dates, roughly chopped pistachios, and toasted shredded coconut. Mix thoroughly until the ingredients are evenly distributed and the mixture holds together when pressed.
03 - Using your hands, scoop tablespoon-sized portions of the mixture and shape them into mounds. Place each cluster onto the prepared baking sheet and gently press to compact. Transfer the baking sheet to the freezer for 10 minutes to firm up the clusters.
04 - Place the chopped dark chocolate and coconut oil in a heatproof bowl. Melt over a double boiler, stirring occasionally, or microwave in 20-second bursts, stirring between each interval until completely smooth and glossy.
05 - Remove the clusters from the freezer. Using two forks, dip each cluster into the melted chocolate, turning to coat all sides. Allow excess chocolate to drip off, then return each coated cluster to the parchment-lined baking sheet.
06 - While the chocolate is still wet, immediately sprinkle the clusters with additional chopped pistachios, toasted coconut flakes, or a pinch of flaky sea salt as desired.
07 - Refrigerate the clusters for 10 to 15 minutes, or until the chocolate coating is fully set and firm to the touch.
08 - Transfer the finished clusters to an airtight container and store in the refrigerator for up to 2 weeks.