Poblano chiles are used for a number of Mexican dishes such as chiles rellenos, chiles en nogada and rajas to name a few. I can’t think of any dish I make without roasting the poblano chiles first, which gives them a more robust flavor.
I sometimes make the mistake of using my bare hands to peel, devein and remove the seeds of a poblano chile because it doesn’t smell too spicy. Usually each time I do, I get fooled and the back of my hands feel like they’re burning for the rest of the day. A few times, I’ve scratched my forehead only to feel the searing sensation and have a little red raspberry spot to show off my mistake.
You can save yourself from the burn by wearing fitted latex gloves.
There are several methods for roasting chiles. The two ways I prefer are over a direct flame or on a hot comal. Either way, be sure not to burn the meaty flesh of the chile or it will have a bitter taste. With both methods as the skin starts to blister, you’ll hear what sounds like little zaps of electricity or sizzling—that’s normal.
OVER A FLAME
- Place 1-2 chiles directly on the stove burners over a medium flame. Turn with kitchen tongs as each side blisters until the skin is toasted and blackened. It should take several minutes per side and about 10-12 minutes total.
ON A COMAL
- If you don’t have a comal, use a cast-iron or heavy non-stick skillet. Heat over medium flame and add 2-3 chiles to the comal. Turn them until the surfaces are toasted and blackened. The amount of time it takes will depend on whether you have a gas or electric stove and the thickness of your comal or skillet.
TO SWEAT THE CHILES
Place the chiles in a sealed, plastic Ziploc bag to “sweat” for about 15 minutes. (You can also refrigerate the chiles for a day or two after sweating if you are not ready to peel, devein and remove the seeds for use.) Sweating has two purposes: first to remove the skin and then to cook the chile a bit further in its own vapors to acquire the characteristic taste of a freshly roasted chile. Have a bowl or plate ready to hold the skinned chiles.
Put on your latex gloves.
After 15 minutes, open the bag and one at a time, pinch part of the skin so it tears and peel it off. Remove the skins from each chile and transfer them to the bowl or plate you have waiting. Discard the skins.
To devein and remove the seeds, cut a slit along the side of the chile. Use your fingers to dislodge the seeds. Pull out what you can with your fingers and then using a slow but steady stream of cool water, rinse the inside of the chile. This should flood the rest of the seeds out if you knocked them loose but couldn’t remove them with your fingers.
Feel for any thick veins along the side of the chile. Using a small paring knife (and being careful not to pierce the skin) gently cut the veins away from the skin. Pat the chiles dry with a paper towel to remove any extra moisture inside and out.
Now the chiles are ready to prepare for a dish.