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

In response to Mireille who asked if liqueurs were gluten-free, I feel
safe in saying that creme de menthe is safe.  I wrote a gluten-free
dessert cookbook and a few of the recipes called for creme de menthe.  I
submitted the book to the CSA/USA and the National Center for Digestive
Diseases for approval of all ingredients.  Both organizations approved
the ingredients, including the creme de menthe.  Hope this helps.
Connie
[log in to unmask]
http://www.glutenfree.homestead.com/homepage.html