Ingredients
Yield: Makes one 9-inch layer cake
Nonstick cooking spray
1 cup (2 sticks) unsalted butter, room temperature
2 1/3 cups plus 3 tablespoons superfine sugar
1 1/4 cups extra-dark cocoa powder, sifted
2 large eggs, room temperature
1 large egg yolk
1 1/3 cup plus 4 teaspoons all-purpose flour
1 1/2 cup plus 4 teaspoons cake flour (not self-rising)
1 tablespoon plus 1/4 teaspoon coarse salt
2 1/4 teaspoons baking powder
2 teaspoons baking soda
2 cups boiling water
1/2 cup canola or sunflower oil
Malted Chocolate Ganache
Marshmallow Frosting
Preparation
