It's traditional to rest dough for some pastries like cookies and breads. I think it allows more time for delicate enzymatic processes, to yield a better flavor.
I would like to ask if this is also applied to resting brownie batter?
I use a brownie batter recipe with the following components: unsweetened chocolate (some kind of a Paris award winning choco), butter, salt, vanilla extract, white and brown sugar, eggs, flour, a dash of baking powder, and cocoa powder (sifted).