Ingredients:
Cake: 1 1/2 cups all-purpose flour
1/2 cup cocoa powder
1 tsp baking soda
1/2 tsp salt
1/2 cup unsalted butter, softened
1 cup sugar
2 eggs
1 cup buttermilk
1 tsp vanilla extract

Ingredients:
Cake: 1 1/2 cups all-purpose flour
1/2 cup cocoa powder
1 tsp baking soda
1/2 tsp salt
1/2 cup unsalted butter, softened
1 cup sugar
2 eggs
1 cup buttermilk
1 tsp vanilla extract