Red Velvet Brownies

Name: Red Velvet Brownies
Ingredients: Nonstick cooking spray; 8 oz. bittersweet 60% chocolate bars, chopped; 1 1/2 c. granulated sugar, divided; 1 c. packed light brown sugar; 1 c. unsalted butter, cubed; 1/4 c. unsweetened cocoa powder; 6 large eggs, room temperature, divided; 1 (1-oz.) bottle red food coloring; 1 tbsp. plus 2 tsp. vanilla extract, divided; 1 3/4 c. plus 2 tbsp. all-purpose flour, divided; 1/2 tsp. kosher salt; 1 c. white chocolate chips; 12 oz. cream cheese, softened; 1/3 c. sour cream, room temperature