Use this recipe to make our Thai Red Curry with Pork and Noodles.
Soak chiles in boiling water until soft, about 1 hour. Blend chiles, soaking liquid, and remaining ingredients in a blender until smooth. Paste can be refrigerated, in an airtight container, up to 1 week or frozen up to 1 month.
If you can't find bunches of cilantro with the roots attached, cilantro stems can be used instead; coarsely chop the tender parts of sixteen stems.