– 1½ Cups All Purpose Flour, Sifted – ½ Cup Cocoa Power, Sifted – 2 Cups Granulated Sugar – 4 Eggs – 2 Sticks Unsalted Butter, Melted – 2 Teaspoons Vanilla Extract – ¼ Teaspoon Salt – 4½ oz Semi- Sweet Chocolate Chopped – Non- Stick Cooking Spray