Preheat the oven to 350℉ and prep a 12 cup muffin pan with cupcake liners. Brew 6 ounces of coffee, set aside.
In a mixing bowl, whisk together the dry ingredients including the all purpose flour, cocoa powder, baking soda, and salt. Set aside.
In a second mixing bowl, whisk together the wet ingredients including sugar, vegetable oil, and eggs until fully emulsified. Whisk in the vanilla extract until combined.
Add a third of the dry flour mixture into the wet mixture and whisk, then pour in half of the warm coffee, mixing until combined. Add in another third of the dry ingredient mixture, whisking in and adding the remaining warm coffee. Finally mix in the remaining dry ingredient mixture and whisk just until combined.
Pour the chocolate cupcake batter into the cupcake lined pan, filling the liners roughly ⅔ of the way full. Avoid overfilling the liners!
Bake for 18-20 minutes or until a toothpick comes out of the center clean.
Let the cupcakes cool completely before frosting them. They should not be warm at all or you risk melting the frosting.