Sent by Maureen
Editor: Maureen, according to Shirley Corriher, the author of BakeWise, that shiny, crackly crust is actually a very thin layer of meringue that arises when eggs are beaten into creamed butter and sugar. You can encourage its formation by beating the batter for longer than usual after adding the eggs and before adding any other ingredients. Here's a little more info:
Readers, do you have any other advice for getting shiny, crackly-topped brownies?
Related: Sweet Potato Chocolate Brownies
(Image: Dana Velden)