A Michael Ruhlman iPad cookbook:

Schmaltz, rendered chicken fat flavored with onion, was such an odd topic, and so focused, it didn’t seem like a big-book idea, so Donna encouraged me to write a short cookbook that we could publish ourselves. Working with a local designer, digital consultant, recipe testers, and copy editor, this is just what we’ve done.

Sounds delicious. And releasing single topic books on the iPad is an intriguing idea.