1 stick unsalted butter
½ cup Dutch cocoa powder sifted
6 tbsp buttermilk
1 tsp vanilla extract
¼ tsp salt
3½ cups powdered sugar
½ cup chopped walnuts or pecans optional
👩🍳 Instructions
Make the Cake
Preheat oven to 350°F (175°C). Grease and flour a 9″x13″ cake pan.
In a large bowl, whisk together flour, sugar, baking soda, and salt. Set aside.
In a small saucepan, combine butter, cocoa powder, and water. Heat over medium-low, whisking until butter melts and mixture is smooth.
Pour cocoa mixture into dry ingredients and stir until just combined.
Add buttermilk, eggs, and vanilla. Mix gently until batter is smooth.
Pour into prepared pan and bake for 28–32 minutes, or until a toothpick inserted in the center comes out clean.
Let cake cool completely in the pan.
