There is an OS X recipe viewer application called "YummySoup". It can export to an idiosyncratic XML file format called Plist.
Soupcon is a web application built with Sinatra to browse a YummySoup database.
It is deployed at soupcon.herokuapp.com.
TO DO LIST
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restructure views in partials, with tabs along top and index or recipe displayed below
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at the moment, input is in a flat XML file read in with Plist. Application would be a great deal more robust if it were upgraded to use a PostgreSQL database instead.