Clayton has a fairly strong Korean community and is an enclave of Korean eateries and one small but fairly comprehensive grocer. The grocer is called JIREH KOREAN AND JAPANESE GROCERY, at 309 Clayton Rd., Clayton. Now: that’s the address of the actual little complex, but to find Jireh, you go around the corner to Carinish St. That’s where it is. They stock most basics, but not exactly all (eg. they didn’t have dried anchovies, but had dried anchovy stock bags), plus some nice extras. The woman who served me was really friendly.