Cryptographer cooks will enjoy deciphering the 140-characters-or-less recipes in this wee tome, which includes a 17-page glossary and a symbols chart. Even those well-versed in Twitter may find author Maureen Evans’ directions baffling, but once you learn the code, you can — hmmm — you can brag that you made Thanksgiving dinner using a collection of tweets, thereby saving trees that would have been killed to make a larger book? The confluence of new and old media makes “Eat Tweet” a bit of a strange bird, but it’s cute and novel, so practicality be damned.