01 - Line a baking sheet with parchment paper and set aside.
02 - In a medium mixing bowl, combine the chopped dates and walnuts, tossing well until the pieces begin to stick together and form a cohesive mixture.
03 - Place the chopped dark chocolate in a heatproof bowl set over a pot of simmering water (double boiler method), stirring until completely smooth and glossy. Alternatively, melt in the microwave in 30-second bursts, stirring between each interval.
04 - Using a spoon, drop heaping tablespoons of the date-walnut mixture onto the prepared baking sheet, shaping each portion into a small, compact mound.
05 - Drizzle or spoon the melted chocolate over each cluster, ensuring all sides are generously and evenly coated.
06 - Sprinkle sea salt flakes over the clusters if desired, distributing evenly across each piece.
07 - Refrigerate the clusters for at least 30 minutes, or until the chocolate 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.