Clarified butter (ghee) lasts pretty much indefinitely. You can buy it premade or easily make it yourself on the stovetop by melting regular butter and separating out the solids.

Here's one method, plucked at random from the tubes:

http://www.foodnetwork.com/recipes/alton-brown/ghee-recipe/index.html


Edited by Rick_D (11/26/08 02:58 PM)
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--Rick