Preparation Steps

• Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
• In a mixing bowl, whisk together the flour, cocoa powder, baking soda, and salt until well combined.
• In another bowl, mix the granulated sugar, brown sugar, eggs, buttermilk, vegetable oil, and vanilla until smooth.
• Gradually add the dry ingredients to the wet mixture, stirring just until incorporated.
• Divide the batter evenly between the prepared pans and smooth the tops.
• Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean. Let cool in pans for 10 minutes before transferring to wire racks.