Celeste's cake represents her desire to maintain a flawless facade, with a rich, complex interior that hints at the complexity of her true self.
Preheat oven to 350°F (175°C).
In a bowl, mix flour, sugar, cocoa, baking powder, and salt.
Add melted butter, eggs, vanilla, and sour cream; mix until smooth.
Pour batter into a greased 9-inch round cake pan.
Bake for 25 minutes or until a toothpick comes out clean.
Cool before serving.