Preheat oven to 350 degrees F. Add cupcake liners to a pan and set aside.
In a mixing bowl combine dry ingredients: flour, sugar, cocoa, baking soda and salt. Mix to combine.
In a larger mixing bowl, whisk together melted butter, oil, coffee, egg, buttermilk and vanilla.
Add the dry ingredients to the wet and mix with a hand mixer for 1 minute or until the batter is fully combined and smooth.
Scoop 3 Tbsp of mixture into each cupcake liner. Bake for 22 minutes or until a toothpick inserted into the center of a cupcake comes out clean.
Transfer to a rack and allow to come to room temperature before frosting.