Ginger

Ginger is a spice that is used by both humans and Smurfs.

Empath: The Luckiest Smurf stories
Ginger in the EMPATH: The Luckiest Smurf story series is used by Greedy Smurf in the creation of gingerbread and other types of foods and desserts. It is also used in the creation of ginger ale that is served in Tapper's Tavern.