Ingredients
Cooking spray
3/4 cup unsweetened cocoa powder, plus more for pan
1 1/2 cups all-purpose flour
1 1/2 cups granulated sugar
1 1/2 teaspoons baking soda
3/4 teaspoon baking powder
3/4 teaspoon fine salt
2 large eggs
3/4 cup buttermilk
3/4 cup warm water
3 tablespoons vegetable oil
6 tablespoons unsalted butter, room temperature
1/2 cup creamy peanut butter
1 1/2 cups marshmallow creme
Confectioners’ sugar, for dusting
Preparation