INGREDIENTS
2 cups
all-purpose flour
1/2 cup
Dutch-processed cocoa powder
1 tsp
baking soda
1/2 tsp
salt
1 cup
light brown sugar, packed
1/2
cup (1 stick) unsalted butter, room temperature
1
large Eggland's Best egg, at room temperature
1 tsp
vanilla extract
1 cup
buttermilk
1/4 tsp
instant espresso powder/granules
1/2 cup
(1 stick) unsalted butter, room temperature
1 cup
powdered sugar
1 1/2 tsp
vanilla extract
salt
2
(scant) cups Marshmallow Fluff/ Cream