Camouflage Chocolate Fudge Brownies

Ingredients

• Nonstick cooking oil spray or room-temperature unsalted butter
• cream cheese
• large eggs, chilled
• sugar, divided
• vanilla extract, divided
• kosher salt, divided
• plus ¾ cup plus 2 Tbsp. unsweetened cocoa powder, preferably Dutch-process
• unsalted butter
• instant espresso powder
• all-purpose flour