INGREDIENTS
•
Cooking spray
•
3/4 cup unsweetened cocoa powder, plus more for pan
•
1 1/2 cups all-purpose flour (spooned and leveled)
•
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 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