Dry chiles are the base of this dish so make sure they’re fresh and in good shape. They should be slightly flexible, have some shine and should smell earthy and a little sweet or spicy. To remove the seeds from dry chiles use scissors to cut off the stems and then cut them lengthwise. Use your fingers or a dry paper towel to scrape out the seeds and veins. Don’t rinse them; it’s important to keep them dry since they will be fried in oil.