Ingredients
Method
Instructions
- Preheat oven to 375°F (190°C). Grease a 15x10-inch baking sheet or jelly roll pan.
- In a large mixing bowl, whisk together flour, sugar, baking soda, and salt. Set aside.
- In a medium saucepan, combine butter, water, and cocoa powder. Heat over medium heat until butter melts and mixture comes to a boil. Remove from heat and pour into dry ingredients. Stir until well combined.
- In a separate bowl, whisk together eggs, buttermilk, and vanilla extract. Add to chocolate mixture and stir until smooth. Pour batter into prepared baking sheet and spread evenly.
- Bake for 18-22 minutes, or until toothpick inserted in center comes out clean.
- While cake bakes, prepare icing by combining butter, milk, and cocoa powder in saucepan. Bring to boil, then remove from heat. Whisk in powdered sugar and vanilla until smooth. Stir in nuts if using.
- Pour warm icing over hot cake immediately after it comes out of oven. Spread evenly and allow to cool completely before slicing.
Notes
Use room temperature ingredients for smoother batter. Don't overmix the batter. Pour warm icing over hot cake for signature fudgy texture. Cake tastes better the next day as flavors meld together.
