First preheat the oven to 170°C (top & bottom heat). Line a rectangular baking tin (20cm length) with baking paper. Grease the form first so that the baking paper sticks better to the tin.
Mash the bananas with a fork. Mix well with eggs, yoghurt, maple syrup, honey and a pinch of salt. Add espresso and mix again.
Ground oat flakes in a mixer or food processor. Mix with buckwheat flour, baking cocoa, the pulp of the vanilla pod, baking powder and baking soda in a bowl.
Add the liquid ingredients to the flour mixture by using a hand mixer (Do not over-mix the dough!)
Pour the dough into the baking tin and bake in the oven on the middle shelf for about 40 minutes. Allow to cool before removing the banana bread from the tin.
For the chocolate glaze, melt the dark chocolate with some coconut oil in a water bath. Pour the liquid chocolate over the banana bread and let it cool down.
Can be served with bananas, peanut butter, fruits of your choice.