Spray two 9-inch cake pans with baking spray. Set aside. Preheat oven to 350°F.
In a bowl, combine the flour, cocoa, salt, baking soda and baking powder. Set aside.
In a measuring cup, combine cooled coffee with milk*. Set aside.
In a large mixing bowl, beat butter and sugar for 5 minutes with an electric mixer. Beat
in eggs, one at a time. Slowly add in dry ingredients and alternate with the coffee/milk mixture (about 3 additions of each).
Once all the ingredients are added, beat cake mixture for about 2-3 minutes until
fluffy (scraping down the sides of the bowl as needed).
Divide cake batter into the two cake pans. Bake in oven for 25 minutes. Remove and
allow to cool about 10 minutes in pan. Invert on a wire rack and cool completely.