- 2 cups all-purpose flour
- 2 cups granulated sugar
- 3/4 cup unsweetened cocoa powder
- 2 teaspoons baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
- 2 large eggs
- 1 cup buttermilk
- 1 cup strong black coffee (cooled)
- 1/2 cup vegetable oil
- 1 teaspoon vanilla extract
- 1 cup chocolate chips (optional)