Rinse and dry your Korean chili peppers, then slice the green heads off each of them.
Lay the peppers out on a metal tray and preheat your smoker to 250F. If you’re already smoking something, you can start these peppers at almost any temperature. Use a smoke tube to create additional smoke.
Smoke the peppers at least 4 hours, and check on them every hour or two. Smoke the peppers until they’re dry to the touch and crunch when squeezed. Depending on the temperature and relative humidity of your smoker, the length of time it takes for the peppers to become crunchy can be quite variable.
When done smoking the peppers, add them to a coffee grinder and pulse them until a fine powder is formed. Store the powder in an airtight container in a dark place. Enjoy :)