<<Disclaimer: Verify this information before applying it to your situation.>>
Here is a list of replies I've received for g/f dry mustard:
Frontier Brand found in most health food stores or www.frontiercoop.com
Tones brand found in Sam's Club
McCormick's found in grocery stores
Schillings Brand
Durkee's
Penzey's which is a large mail order spice catalog. They also have a store
in Norwalk, Conn and two or three others out West I believe. www.penzeys.com
Thanks everybody. I found Frontier in the health food store near me.
Lisa Zafar
Orange County, NY