Chili Sambal (Indonesian Hot Pepper Sauce)

Also known as Sambal Oelek, this fiery sauce is used as an accompaniment for many dishes or as a sauce in a main dish. You'll find a lot of Indonesian recipes call for it, as well as some Thai dishes. The Thai version, though, as I've found with many Thai recipes, ends up using a few more ingredients, like lemongrass. The Indonesian version is nice and simple, though, and packs a bigger punch in my opinion, and the hotter the chilies you use, the better!