Preheat the oven to 350° F. Grease a 9″ springform pan with a teaspoon olive oil.
For the fennel topping:
- Bring a medium saucepan to medium heat. Dissolve the organic cane sugar in 3/4 cup water, stirring regularly with a non-reactive spoon. Add the fennel, kosher salt and lemon juice. Bring to a simmer then reduce heat to low and cook for 15 minutes or until the liquid is reduced to 25%. Turn off heat and carefully spread the fennel evenly over the bottom of the prepared cake pan. Carefully set aside.
For the cake:
- In a medium bowl, whisk together the cake flour, organic cane sugar, baking powder, baking soda and kosher salt.
- In a separate, large bowl, whisk together the unsweetened vegan milk, aquafaba, good olive oil, lemon zest and ground fennel seeds.
- Add the dry ingredients to the wet ingredients in the large bowl. Whisk until just combined.
- Pour the batter evenly over the candied fennel. Place in the preheated oven and bake until a toothpick inserted in the middle of the cake comes out clean, 30 minutes. Cool for 10 minutes in the pan, then invert the cake onto a plate to cool completely.
For the sauce:
- In a small bowl, whisk together the lingonberry jam, lemon juice and 2 tablespoons warm water.
When cake is cool, cut into slices and top each slice with a spoonful of the lingonberry sauce and fennel fronds on top.