<<Disclaimer: Verify this information before applying it to your situation.>>

Bickford Foods makes a gf imitation vanilla extract with propylene glycol,
which is quite good, and inexpensive if you order the larger quantities
(like 16 oz or more), because shipping costs the same whether they send you
an ounce or a pint.
Their number (from B. HAgman's _More from..._ book) is (800) 283-8322.

No financial interest, just satisfied!

Amy Anderson, TX USA