Here: topped with buckwheat groats
2/3 cup raw cacao powder (not cocoa)
1/4 cup coconut oil
Maple syrup (or honey for non vegans)
Melt the oil. Coconut oil melts extremely fast so be careful with the heat.
Then add the cacao and maple syrup.
Spread thinly in a tin or line tray and keep it cold. To make it firm faster, freeze for a couple of hours.