Line a loaf pan (narrow, if possible) with parchment paper and set aside.
In the bowl of a food processor, pulse the dates a few times and then run the food processor until they are very pureed - my dates always form a ball at this stage.
Melt the cocoa butter over a double boiler, or a heat-proof bowl over boiling water (or, real talk, I've melted my cocoa butter in the microwave and it works just fine).
Add the melted cocoa butter, cocoa powder, vanilla, and sea salt to the dates, and run the food processor until everything is well combined and very smooth.
Pour the chocolate mixture into the prepared loaf pan.
Sprinkle with any toppings you like, and set in the fridge to chill.
Once the chocolate is set you can let it sit at room temperature, and use a sharp knife to slice it into little bars. Store at room temperature or in the fridge.