Preheat oven to 160 degree Celcius
Rinse the beans and remove the stones from the dates
Add everything apart from chocolate to a blender and blend until completely smooth
Chop your dark chocolate into chunks and add ¾ of the chopped chocolate to the batter and mix with a spoon. Top the batter with the remaining chocolate
Transfer to a lined tin and bake for 50 minutes. Bake it covered w. aluminium for the first 35 minutes, then uncovered for the last 15 so you avoid burning the top.
Allow to cool completely, and slice
