Preheat oven to 350* F. Grease two 8-inch round cake pans and insert parchment circles into the bottom of the pans.
In a large bowl, combine flour, sugar, cocoa powder, baking powder, baking soda, and salt. Whisk to combine.
2 Cups All-Purpose Flour, 2 Cups Granulated Sugar, ¾ Cup Dutch-Processed Cocoa Powder, ½ teaspoon Baking Soda, 2 ½ teaspoon Baking Powder, ½ teaspoon Kosher Salt
In a medium bowl, combine non-dairy milk, melted non-dairy butter, instant espresso, vinegar, and vanilla. Whisk well, then pour into the dry ingredients and whisk to form the chocolate cake batter.
2 Cups Non-Dairy Milk, ¾ Cup Non-Dairy Butter, melted and cooled, 2 teaspoon Instant Espresso Powder, 2 teaspoon White Vinegar, 2 teaspoon Vanilla
Divide the batter between the two prepared 8-inch round cake pans. If you are weighing the batter, it will be about 24 oz per pan. Then, use a spatula to level the batter out.
Bake the cake layers in a 350*F oven for 38-42 minutes or until a toothpick inserted into the center of the cakes comes out clean.
Allow the cakes to cool in their pans for 30 minutes, then turn the cakes out onto a parchment-lined baking sheet and place in the freezer for at least an hour, or until completely cold.