![Screenshot of brownies in YouTube video](https://i1.wp.com/boingboing.net/wp-content/uploads/2021/01/brownies.jpg?fit=1200%2C634&ssl=1)
Brownies have a glossy top surface. What exactly is up with that? Why … glossy?
Adam Ragusea wondered, so he dialed up Pia Sörensen, a Harvard professor who teaches a course called "The Science of Cooking" — and with her expertise to guide him, did some superb kitchen science to figure out what's going on. — Read the rest