INGREDIENTS
1 3/4 cups
plus 2 tablespoons cake flour
1 cup
Dutch-process cocoa powder
1 1/2 tsp
baking powder
3/4 tsp
baking soda
1/2 tsp
salt
6
large eggs at room temperature, separated
1 cup
canola oil
1 3/4 cups
plus 2 tablespoons sugar, divided
6 tbsp
water
2 cups
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marshmallow creme
1/2 cup
unsalted butter, at room temperature
3/4 cup
confectioners’ sugar, sifted
salt
1/2 tsp
cream or milk
5 oz
bittersweet chocolate, finely chopped
1/2 cup
plus 2 tablespoons heavy cream