Photo: Lisa Linder
Soak the cashew nuts for the vanilla and cherry layers separately in 200ml of filtered water and ½ tsp of Himalayan pink salt for 3-4 hours. Drain and rinse well. Line a baking tray at least 27cm long and 4cm deep with baking parchment.
In a food processor, roughly chop the Brazil nuts. Remove from the processor and set aside. Add the dates, vanilla seeds, salt, cacao powder and cinnamon to the blender and blitz to make a paste. Add the chopped nuts, chocolate and sprouted oats, and pulse a few times to combine. The mix will be in crumbs but should come together when you squeeze a piece in your hands.
Turn out the raw cake mix and press it along one long and one short edge of the baking tray to make a rectangular base. Now you need to make a makeshift mould around the cake base. Fold up a piece of aluminium foil, overlapping it about three times to make a 4cm-high wall. Place the wall around the two edges of the cake that aren’t touching the baking tray. Freeze.
To make the vanilla layer, blend the soaked cashew nuts and almond milk until smooth. Add the coconut nectar or honey, vanilla seeds and coconut oil and blend until completely smooth. Pour over the chocolate base, making sure none of the mix leaks through the mould. Freeze immediately for 1-2 hours to set. The vanilla layer must be completely set before adding the cherry layer.
To make the cherry layer, place the cherries, cinnamon, salt, lemon zest and juice in the blender and process to make a cherry juice. Add the soaked cashew nuts and blend until almost completely smooth. Melt the coconut oil and add it to the blender, along with the sour cherries, and blend once more until completely smooth, scraping the mix down from the sides if necessary. The mix should turn from a deep purple to red when the sour cherries are added. Taste and adjust to your preferred sweetness if desired. Pour the cherry layer over the vanilla layer and freeze for a further 1 hour until firm but not frozen solid. Remove from the freezer and slice into 2.5cm-wide rectangles. To get a clean cut, dip a sharp knife in hot water and slice when frozen. Decorate each piece as desired.
Clean Cakes by Henrietta Inman (Jacqui Small, £20)