Ingrédients :

1 ¾ cups all-purpose flour

1 cup granulated sugar

½ cup unsweetened cocoa powder

1 teaspoon baking powder

½ teaspoon baking soda

½ teaspoon salt

1 cup buttermilk

½ cup vegetable oil

2 large eggs

2 teaspoons vanilla extract

1 cup chocolate chips (semi-sweet or dark)

Optional: chopped nuts or chocolate chunks for extra texture