INGREDIENTS
5 tbsp
butter, plus more for parchment and pan
2/3 cup
sifted cake flour
1/3 cup
sifted cocoa powder, plus more for dusting
baking soda
6
eggs
3/4 cup
sugar
2 tsp
vanilla
1 cup
butter
2 cups
sifted powdered sugar
1
jar marshmallow cream
2 tsp
vanilla extract