Grease & parchment line your cake pans & preheat the oven to 350℉
Combine the flax meal with the hot water & whisk smooth, set it aside to thicken
Sift the flour with the baking powder & salt
Combine the apple cider vinegar with the soy milk & the vanilla extract ~ let it stand to thicken for approximately 5 minutes.
With an electric mixer cream the softened vegan butter with the granulated sugar on medium to high speed for approximately 5 minutes until light & fluffy.
Scrape the bottom & sides of the bowl then add the flax paste while mixing on medium speed.
Once it is incorporated increase speed to high and whip for 30 seconds to emulsify
Add 1/3 of the sifted dry ingredients mixing only until combined then add half of the milk mixture mixing just until combined
Then add another 1/3 of the dry ingredients & the rest of the milk mixture then then the last of the dry ingredients.
Spread approximately 1¾ cups of the batter into one of your prepared pans.
The first addition of cocoa powder will be 2 Tablespoons to all of the remaining batter in the bowl and mix well.
Spread approximately 1¾ cups of this light cocoa batter into another pan
The remaining cocoa additions will now only be 1 Tablespoon at a time to the remaining batter until all the cocoa powder is gone & you have spread the graduating layers of cocoa batter into each of your prepared pans.
It is ok to let the batter sit on the counter as you bake the layers since most likely you do not have 7 pans )like I do not)
The bake time in a preheated oven for these thin layers of cake are approximately 15 minutes or until springy to the touch when you gently press the centers.
Cool the cakes, then re-grease & parchment line the cake pans again for the remaining batter & layers.
Once the cakes are completely cooled, fill & ice with mocha buttercream
Garnish with cocoa nibs and ganache drip
Video
Notes
Storage At a cool room temperature for up to 2 days.. For longer storage keep refrigerated for up to 10 days. Freeze wrapped well for up to 2 months