The garlic chili paste can be found in most supermarkets in the Asian food isle. The garlic chili paste I used, distributed by Huy Fong Foods, is a mixture of chili peppers, garlic, shrimp paste, fish sauce, ginger, shallots, scallions, palm sugar, lime juice and vinegar. It adds great flavor to the dish. You can also make your own garlic chili paste using these ingredients, if you are unable to locate the garlic chili paste at the store.