Ingredients
Method
Instructions
- Preheat your oven to 350°F (175°C). Grease a 15x10-inch jelly roll pan or a similar-sized baking sheet.
- In a large 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, stirring constantly, until the butter melts and the mixture comes to a boil.
- Pour the hot cocoa mixture over the dry ingredients and stir until well combined.
- Add buttermilk, eggs, and vanilla extract. Mix until smooth and no lumps remain.
- Pour the batter into the prepared pan and spread evenly. Bake for 20-25 minutes, or until a toothpick inserted in the center comes out clean.
- While the cake bakes, prepare the icing. In a saucepan, combine butter, cocoa powder, and milk. Bring to a boil, then remove from heat.
- Stir in vanilla extract and powdered sugar until smooth. Mix in pecans if using.
- As soon as the cake comes out of the oven, pour the warm icing over the hot cake and spread evenly with a spatula.
- Let the cake cool completely before cutting into squares and serving.
Notes
Don't overbake - the cake should be moist and springy. Ice while hot - the warm icing seeps into the hot cake, creating that signature moist texture. Use good quality cocoa for best results. This cake actually tastes better the next day as the flavors meld together.
