Well-lit and well-organized, El Cerrito’s cozy Thai grocery store carries just about anything you could need to prepare your own Thai feast at home. There’s palm sugar, tamarind paste, holy basil, Golden Mountain Seasoning Sauce, and other tough-to-find, trusty brands for everything from curry paste to fish sauce. But what really sets Roong Jing Jing apart from the East Bay’s other Thai groceries is the vast selection of Thai desserts and other prepared food that vendors deliver on Saturdays. It’s like a Thai night market — only during the day, and all contained in one tiny shop. The laarb, which comes with sticky rice and fresh herbs, packs fire. The curries taste better than they do at most local restaurants. And there’s even khao mun gai. For dessert, you’ll find a dizzying variety of coconut treats, pandan jellies, and egg-based confections at exceedingly reasonable prices.