Preheat oven to 350°. Grease 2 8-inch round cake pans with non-stick spray.
Add sugar and almonds to a blender and blend to a powder. Add in flour, oil, starter, eggs, ginger, salt, baking powder, and baking soda. Blend until smooth. Pour batter equally into prepared cake pans.
Bake 15-20 minutes until a toothpick inserted in the center comes out clean. Allow to cool 10 minutes before removing from pans. Cool completely on a wire rack.
When cakes have cooled completely transfer them to the fridge and make frosting. Whisk together gelatin and water in a small bowl and set aside. In the bowl of a mixer with whisk attachment combine heavy cream, powdered sugar, cinnamon, cardamom, and ginger. Begin mixing at a low speed. Microwave gelatin for 5-10 seconds until liquid again and stir. Slowly pour gelatin into the mixer bowl. Gradually increase to highest speed and whip until very stiff.
Cut the domed tops off the cakes. Frost the top of one cake then place the other cake atop it and frost the top and sides of the entire cake. Sprinkle ground cinnamon on top through a mesh sieve and then finish with some chocolate shavings.