Korean shaved ice, called patbingsu, can be had all over OC. I've had decent ones at Paris Baguette and Cafe 7th Home. Now there's a shop that specifically focuses on serving it. Okbingsul opened in Fullerton at the corner of Brookhurst and Orangethorpe, a plaza anchored by a Korean grocery store called AR Mart.
Like other patbingsu specialists such as Sul N Beans in LA, Okbingsul serves its shaved rice in gigantic bowls decorated with fruits, cheese and sweetened red beans. Dessert toasts are also offered.
An exhaustive menu from the company website lists all the different permutations of shaved ice.
1068 S Brookhurst Rd., Fullerton, CA 92833