Heat oven to 350°F. Prepare a 9x13-inch baking dish with non-stick spray or GOOP.
In a large bowl add flour, cocoa, baking powder, salt. Whisk together ingredients until they are fully incorporated.
In the bowl of a stand mixer or in a large bowl using a hand-held mixer, beat the eggs, sugar, butter, and vanilla until light and fluffy.
With the mixer off, add in the flour mixture. Turn mixer on low and mix until ingredients are well combined.
Pour brownies into a prepared baking dish and bake for 30-35 minutes at 350°F. Brownies are done when an inserted toothpick is removed with crumbs but not wet batter.
In a medium bowl, combine the cream cheese, confectioners' sugar, and the cool whip. Blend until smooth.
Spread mixture on top of cooled brownies.
In a medium bowl combine the milk and pudding.
Using a hand mixer, beat on medium speed until thickened (2-3 minutes). Carefully spread on top of the cream cheese layer.
Top with Cool Whip, chocolate swirls, and chocolate syrup.
Refrigerate 1-hour, or until ready to serve.
