Outstanding app, extremely helpful. Much better than the current xcode 4 doc view.

Re an earlier comment: there is a table of contents, use the View > Show Filter Bar command. Once the filter bar is up on the right, you can see the TOC (group by tasks) or you can group by function or name).

To set up a command key to go from xcode to Ingredients and automatically look it up, use the Ingredients>Services>Services Preferences... menu, then find the item in the "Text" keyboard shortcuts called "Look up in Ingredients" and set a shortcut. You might have to clear the shortcut in the xcode preferences to have it picked up.