Preheat Oven: Preheat to 350°F (175°C). Grease and line two 8-inch round cake pans.
Mix Dry Ingredients: In a large bowl, whisk together flour, sugar, cocoa powder, baking soda, and salt.
Combine Wet Ingredients: In a separate bowl, mix almond milk, oil, apple cider vinegar, vanilla, and coffee.
Make the Batter: Pour the wet ingredients into the dry ingredients. Whisk until smooth and combined — do not overmix.
Bake: Divide the batter evenly between the prepared pans. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.
Cool: Let cakes cool in pans for 10 minutes, then transfer to wire racks to cool completely before frosting.