01 - Line a small loaf pan or chocolate mold with parchment paper, leaving a slight overhang for easy removal.
02 - Place dark chocolate, butter, and heavy cream in a heatproof bowl set over simmering water and stir gently until smooth and glossy.
03 - Remove from heat and fold in nuts, dried fruits, and half of the sea salt flakes, if using.
04 - Pour the chocolate mixture into the prepared pan, tap gently to release air bubbles, and smooth the surface.
05 - Sprinkle the remaining sea salt flakes evenly over the top.
06 - Refrigerate for at least 1.5 hours until the chocolate is fully set.
07 - Remove chocolate from mold, cut into 8 bars using a sharp knife, and store in an airtight container in a cool place.