So, how does it miraculously puff up to such great heights? It’s all thanks to steam. In the oven, the moisture in the dough creates pockets of steam which puff up in layers between pockets of fat.

When aggravated by a predator, they, you know, puff up. Some puffers, like the porcupine fish, become a bona fide spike ball, moving through the water seemingly out of control. But if you peer ...