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> What's this about vanilla extracted from alcohol?

Extracted _in_ alcohol, actually.  Most vanilla extracts are
based on grain-derived alcohol, and in some cases it appears
that a gluten residue can remain.  It's something to watch out
for; we generally avoid using any product that lists "vanilla"
in its ingredients, and buy things with "vanillin" (an artificial
substitute) instead.

You can find alcohol-free extracts for cooking at home; Dietary
Specialties carries one I think, and I know for sure that
Trader Joes does (for you west-coasters).

                                        eh