Cookie

The cookie is an edible item introduced in the Beta 1.4 update. Notch had previously mentioned it in a tweet. It will require Cocoa Beans to craft, suggesting that they will be reintroduced. It was later confirmed that cocoa beans will appear in dungeon chests, but it is not yet known if that is the only way to acquire them.

Because cookies are the only foodstuff that stacks (as of Beta 1.4), they are extremely useful for exploring caverns and other dangerous areas despite the relatively low amount of health they restore. Just kidding, a full stack restores the same amount of health as one cooked pork, so for how rare cocoa beans are, it makes no sense to use cookies practically. One stack of cookies will restore 4 health in total (which is equivalent to one cooked pork), because they are only stackable to 8