Phrik Pon Khua (toasted chile powder) is a common spice in Thailand, where it is often a part of the seasonings served at the table with pad thai. It has a tame heat and a roasted, dark-fruit flavor. Be sure to toast your chiles in a very well-ventilated area or, even better, outdoors on a small charcoal grill. This recipe was adapted from Andy Ricker and JJ Goode’s book, Pok Pok Noodles. —Kat Craddock
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