Chocolate Cake with Fluffy Frosting

INGREDIENTS

Cake:

1/4 cup

Dutch process cocoa

1/3 cup

boiling water

1 1/2 oz

bittersweet chocolate, finely chopped

6 7/10 oz

cake flour (about 1 2/3 cups)

1 1/2 tsp

baking powder

1/2 tsp

baking soda

1/4 tsp

salt

2/3 cup

granulated sugar

2/3 cup

nonfat buttermilk

1/3 cup

canola oil

large egg whites

1/4 tsp

cream of tartar

Baking spray with flour (such as Baker's Joy)

Frosting:

3/4 cup

cream cheese, softened

1 8 ounce package

1/3-less-fat cream cheese, softened

2 tbsp

cake flour

1 tsp

vanilla extract

1/8 tsp

salt

3 cups

powdered sugar

1 cup

marshmallow creme