ingredients

• 1 (18.25 ounce) package devil’s food cake mix
• 1 (5.9 ounce) package instant chocolate pudding mix
• 1 cup sour cream
• 1 cup vegetable oil
• 4 eggs, lightly beaten
• 2 teaspoons pure vanilla extract
• 1 tablespoon instant espresso granules dissolved in 1/2 cup warm water

Source: http://www.tastebook.com/recipes/3566288-My-Favorite-Doctored-Up-Cake-Mix