However, you might not be as familiar with Sichuan pepper. These small peppercorns are ash tree berries and a staple in ...

Sichuan pepper is sold as whole berries or a ground powder. Try to buy the freshest berries you can, as they quickly lose their pungency.

pepper tree. It has a menthol-like taste, and can cause allergic reactions in people with tree nut sensitivities. And the Sichuan peppercorn? It's the berry of a citrus tree, the prickly ash tree.