Preheat oven to 350°F (175°C). Grease and flour two 8-inch round cake pans.
In a large bowl, whisk together the dry cake mix, espresso powder, and premium baking cocoa.
Add the whole milk, melted butter, eggs, and pure vanilla bean paste to the dry ingredients.
Beat on medium speed with an electric mixer for exactly 2 minutes until smooth.
Divide batter evenly between prepared pans. Bake for 28-32 minutes, or until a toothpick inserted comes out clean.
Cool in pans for 10 minutes, then turn out onto wire racks to cool completely before frosting.