Lemon Filling: (make ahead)
- Drain pre-soaked cashews. Add all ingredients (cashews through lemon rind) to blender and blend on high until very smooth. Scrape down sides and blend again.
- Place in covered container and refrigerate at least one hour.
For Cake:
- Preheat oven to 350F.
- Grease 8 or 9 inch round cake pan. Line the bottom with parchment paper.
- In blender or food processor, add all wet ingredients (navy beans through ghee). Blend or process until very smooth.
- In large mixing bowl, whisk dry ingredients.
- Pour wet ingredients into dry. Mix well with a wooden spoon.
- Pour batter into prepared baking pan. Bake for 20-25 minutes.
Assembly:
- Allow cake to cool in pan 20 minutes. Turn out onto cooling rack and allow to cool completely.
- Once cake has cooled, transfer to serving dish. Spread lemon icing on top. If desired, garnish with grated lemon zest.
- Store cake in refrigerator. Enjoy!