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Preheat the oven to 350. Line 14 to 15 muffin cups with cupcake liners and set pan aside.
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Combine the sugar, butter, and oil in a large mixing bowl and whisk until combined. Beat in the eggs and vanilla.
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Combine the flour, baking powder, baking soda, salt, and cocoa powder in a medium mixing bowl and whisk to combine. (These are your dry ingredients.)
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Whisk half of the dry ingredients into the butter-sugar mixture and stir just to combine. Mix in half of the coffee. Stir in the remaining dry ingredients, then the remaining coffee, again mixing just to combine.
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Divide batter evenly between the prepared muffin cups, filling each cup about 3/4 full.
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Bake 18 to 22 minutes, until the cupcakes spring back when touched gently with your fingertip. Let cupcakes cool in pans for 15 minutes, then carefully remove from the pans to cool completely on a wire rack.