Preheat your oven to 350°F (175°C) and grease two 9-inch round cake pans.

In a large mixing bowl, combine the flour, cocoa powder, sugar, baking powder, baking soda, and salt.

Add buttermilk, vegetable oil, eggs, and vanilla extract to the dry ingredients.

Mix until well combined and smooth.

Gently fold in chocolate chips.

Divide the batter evenly between the prepared cake pans.

Bake for 30-35 minutes or until a toothpick comes out clean.

Let the cakes cool in the pans for 10 minutes, then transfer to wire racks.

Allow the cakes to cool completely before frosting.

Frost with your favorite chocolate frosting and enjoy!