INGREDIENTS
1
Egg yolk, large
2
Eggs, large
1 1/3 cups
All-purpose flour
2 1/4 tsp
Baking powder
2 tsp
Baking soda
1 1/2 cups
Cake flour
1 1/4 cups
Cocoa powder, dark
1
Malted chocolate ganache
1
Marshmallow frosting
1 1/8 tbsp
Salt, coarse
2 1/2 cups
Superfine sugar
1/2 cup
Canola or sunflower oil
1
Cooking spray, Nonstick
1 cup
Butter, unsalted
2 cups
Water