sulfurisé

/syl.fy.ʁi.ze/sulfuriser
1.
adjectiveSing

treated with sulfur (sulfured); commonly used in cooking contexts — e.g., in the compound 'papier sulfurisé' meaning parchment/greaseproof paper

Mets du papier sulfurisé sur la plaque pour que les biscuits ne collent pas.

Put parchment paper on the tray so the cookies don't stick.