Szechwan Pepper

Szechwan Pepper (sichuan pepper) is the brown berries of a Chinese spice, which comes from the prickly ash tree. The berry is similar to a black peppercorn but contains a tiny seed and has a distinctive flavor that is less sharp. There has been a US ban on the seeds because it may carry a citrus canker but as of 2005 the ban has been lifted. All product must be heat processed before it is allowed to enter the U.S.Learn more

If you don't have Szechuan pepper, you can substitute (per tablespoon needed)
2 teaspoons black peppercorns + 1 teaspoon lemon zest
OR> use 1 tablespoon salt free lemon pepper seasoning
OR>Tasmanian pepper
OR> 2 teaspoons Japanese Sansho powder