01 - Line a large baking sheet with parchment paper to prevent sticking.
02 - Place chopped dark chocolate in a heatproof bowl over a pot of gently simmering water and stir until completely smooth, or microwave in 30-second intervals, stirring each time, until melted.
03 - Remove the melted chocolate from heat. Mix in most of the chopped cashews and puffed rice cereal, reserving a small portion of each for topping.
04 - Pour the chocolate mixture onto the prepared baking sheet and use a spatula to spread into an even layer, approximately 1/4 inch thick.
05 - Sprinkle the reserved cashews, puffed rice cereal, flaky sea salt, and chopped dried fruit evenly over the surface.
06 - Gently press the toppings into the surface using clean hands or the back of a spoon. Transfer to the refrigerator and chill for at least 45 minutes, or until fully set.
07 - Break the set chocolate bark into individual pieces. Store in an airtight container at room temperature for up to 2 weeks.