Sansho is Sichuan pepper’s Japanese cousin, and it produces an even stronger numbing, tingling sensation on the tongue.
Like Sichuan pepper, sansho is often added to already spicy seasonings, can make almost any rice dish more interesting, and is called upon to cut fatty flavors in pork, eel, and rich mushrooms.
Its electric sensation is gaining in popularity as a condiment for ramen, too.