1. Using a stand mixer, in one bowl, combine cocoa, butter, 1 3/4 cup sugar, vanilla, 3 eggs, and flour. Mix until just combined.
2. Butter the bottom and sides of a 13×9-inch baking pan. Pour batter into pan and spread evenly.
3. Using a stand mixer, in another bowl, combine egg white, pumpkin, cream cheese, 3 tablespoons sugar, cinnamon, nutmeg, and cloves. Beat until well combined and smooth. Spoon cream cheese mixture over the brownie batter and swirl by dragging a knife back and forth through the batter.
4. Bake at 350 degrees for 25 to 30 minutes. Let cool for 10 minutes and serve. Refridgerate after serving.