Preheat the oven to 160°C (320°F) and put a baking paper inside a loaf pan

Put the aquafaba in a bowl or food processor and whip until creamy

Slowly stir in powdered sugar, sugar and orange juice

Mix flour, baking powder and all spices and add them to the whipped mass along with the nuts (it’s ok if the mass collapses a little)

Put it into the loaf pan and bake for 50-60 minutes

Let it cool off and wrap it into a damp towel over night

Preheat the oven to 200°C (392°F) the next day

Cut the „cake“ into thin slices (approx. 0.2“) by using either a sharp knife or a bread slicer, place them on a baking paper and bake them again for 7-8 minutes (keep an eye on them, they should only turn golden, not brown)