KOC Crawfish is a Vietnamese restaurant in Garden Grove. To steep the shellfish, no customer at KOC Crawfish (or its inspiration, the Boiling Crab) opts for anything except the sauce that has everything. It should be common knowledge that asking for mild will make you sweat through your shirt; ordering it “extra spicy” will melt the flesh off your face as though you’re an Indiana Jones villain. And when you taste KOC’s blend, you’ll notice that other than the copious amounts of raw chopped garlic, there’s very little difference from Boiling Crab’s. Yet KOC isn’t just another knockoff: it’s also a full-fledged quán ôc, a distinctly Vietnamese eating establishment focusing on snail dishes you share with a table of friends, washing everything down with beer. Offered are fingernail-sized mud creeper snails with a coconut curry and four other species of mollusks in various stir fries, most of them involving butter, garlic and onions. The best of these may be the razor clams grilled in their long half-shells, brushed with a spicy sauce, then sprinkled with oil-wilted scallions and crushed peanuts.