Ultra-Moist Amazing Vegan Chocolate Layer Cake

Instructions

1. Pour the plant-base milk into a medium sauce pan, and bring just the the brink of boiling. You only want to scald it, so quickly take the pan off the heat, and add in the chopped chocolate. Let sit for a few minutes to melt, and then stir the mixture thoroughly until smooth. 
2. Cut the butter into tablespoon-sized pieces, and add them into the melted chocolate, stirring until completely melted and mixed in. Incorporate the vanilla, and let sit at room temperature until cool. Transfer into the fridge to chill. It may take as long as 2 to 3 hours to fully cool, but bear in mind that it will not thicken to the point of being pipe-able; This is a very soft, silky frosting, more like ganache than buttercream. Once it’s merely spreadable, it’s ready to use.
3. Meanwhile, preheat the oven to 350º F and lightly grease and flour three 8-inch round cake pans. You can also do this successfully with just two pans, as long as you measure your batter carefully and have patience.
4. In the bowl of your stand mixer or a large bowl, whisk together the flour, sugar, cocoa, ground flax seeds, salt, baking powder, and soda. Make sure that all of the dry goods are evenly distributed throughout.
5. In a separate bowl, combine the plant-based milk, coffee, vinegar, and vanilla, and let sit undisturbed for about 5 minutes. At that point, add in the secret ingredient here, the vegan mayo, as well as the oil, and mix well.
6. Add the liquids into the bowl of dry ingredient, and slowly mix, just until the batter is mostly smooth and homogeneous. A few lumps are fine, as long as you don’t over-mix. That would cause your cake to come out very tough and chewy, which is not what we’re looking for! Don’t worry if the mixture seems excessively soupy- That is indeed the correct consistency.
7. Divide your batter evenly between your three prepared baking pans. [If you're only using two, measure out the full amount of batter, and divide by three. You should end up with somewhere around 2 1/2 of batter in each pan. Reserve the remaining third in your fridge while the first two cakes bake, and allow the cakes to cool completely before turning them out onto a large plate. Quickly rinse and dry one of the pans, re-grease and flour, and bake the final amount of batter in the same manner.]
8. Bake for 35 to 45 minutes, until a toothpick inserted into the center comes out clean, with perhaps a few moist crumbs clinging to it. Let cool completely before assembling and frosting.
9. To achieve the decorative pattern on top of the cake as pictured above, first chill the frosted cake thoroughly so that chocolate frosting can set slightly. Take a large doily and gently place it on top, without pressing down, and sprinkle powdered sugar all over. Lift the doily straight up without shaking it, which will remove the excess and leave a lovely, lacy design in its place.