Preheat oven to 350-degrees. Line a 9x13-inch baking pan with foil and spray the bottom and sides with baking spray. Set aside.

In the bowl of a stand mixer, affixed with the paddle attachment, add the melted butter, sugar and cocoa powder. Mix on low until the ingredients are combined, and then increase the speed to medium-high for 30-seconds. Turn the mixer off.

Scrape down the sides of the bowl and add in the eggs and egg yolks one at a time, mixing each egg or egg yolk in completely on medium speed, before adding the next egg. Add the vanilla extract and red food coloring.

Change the mixer to low speed and add the flour and salt. Mix until barely combined. Add the vinegar and mix until combined. Remove the bowl from the mixer and fold in the white chocolate chips and semi-sweet chocolate chips. Pour batter into prepared bake pan.

Bake brownies in 350-degree oven for 28-32 minutes, or until a toothpick inserted in the middle comes out without raw batter on it. Crumbs are okay. Do not over bake.

Allow brownies to cool and set in the pan completely before cutting into squares.