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How To Roast Dried Chiles

May 28, 2021 By Patrick 8 Comments

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I get loads of questions about roasting dried chiles, so I just wanted to quickly go over your two best options if this step isn’t part of your routine yet. 

There’s also a third option that I hope you never ever use, but more on that in a bit 🙂

This is a great recipe for a huge batch of delicious enchilada sauce. It will freeze quite well so feel free to throw a few portions in the freezer. Yum! mexicanplease.com

How To Roast Dried Chiles

Roasting dried chiles is the ultimate secret weapon and I never skip this step.  The science will say that applying sustained heat activates dormant oils in the chiles, but your palate will be content with a simpler explanation…

It makes them taste better 🙂 

If you’ve got a big batch of chiles to roast then I think the oven works best. 

Start by wiping off any dusty crevasses on the chiles, then de-stem and de-seed them.  Put the chiles pieces on a baking tray and let ’em roast in a pre-heated oven (400F) for about 2 minutes. 

This is a great recipe for a huge batch of delicious enchilada sauce. It will freeze quite well so feel free to throw a few portions in the freezer. Yum! mexicanplease.com

But don’t leave them in there too long! 

Ideally they are warm, fragrant, and still pliable after a 2-minute oven visit.  They’ll turn brittle if you cook them much longer, like this forgotten beauty that I left in for about 10 minutes:

Dried chile turned brittle after six minutes in oven

When they get rigid and crumbly their flavor will turn bitter.  There’s no saving them at this point and it’s usually best to just start over.  

Most of the recipes on this site will recommend 1-2 minutes in the oven (400F).  Fresh, pliable dried chiles can handle the full 2 minutes, but older chiles that are less pliable will turn brittle faster, so I tend to give them a healthy minute in the oven and then take a peek to see how they’re doing.   

Your second option is to use the stovetop to roast your dried chiles.  This works best for smaller batches, or when you don’t want to turn on the oven!

Simply heat up a comal or skillet to medium-high heat.  Then use a spatula to give your chile pieces about 15-30 seconds per side. 

Using stovetop method to roast dried chiles

Pressing down with a spatula will help apply the heat evenly to the chiles.

Similar to the oven, you’ll know if you’ve gone too far if your chiles start to crumble or break apart!  Ideally, they are warm, fragrant, and still pliable after you roast them — this should be around 15-30 seconds per side. 

And now the dreaded third option that you’ll occasionally see people use…

Since most recipes will call for you to rehydrate your roasted chiles in some hot water, some folks will take a shortcut by combining the two steps and letting the chiles rehydrate in boiling water. 

This is a great recipe for a huge batch of delicious enchilada sauce. It will freeze quite well so feel free to throw a few portions in the freezer. Yum! mexicanplease.com

This sounds good on paper as it still applies sustained heat to the chiles, but I did a test on this a couple years and was disappointed with the results. 

Comparing boiled to stovetop roasted dried chiles

So the bowl on the right in the above pic has stovetop roasted dried chiles that were rehydrated in warm tap water and then blended. 

And the bowl on the left is dried chiles that were roasted/rehydrated using the boiling water method.  Both are Mulato chiles even though the boiled version has a darker color. 

The taste difference was substantial, with the stovetop roasted chiles being a clear winner.  They were potent and significantly more flavorful.   The boiled chiles still had the essence of the chile, but they were dull and mild compared to the stovetop version and it wasn’t even close.  

This was eye-opening but kinda makes sense in retrospect.  Boiling water maxes out at 212F, whereas the oven and stovetop (medium-high) are upwards of 400F.  That extra 200 degrees makes a big difference and really pulls out the full potential of the dried chiles. 

So no using the boiling water method please!

Stick to the oven for big batches of chiles, and the stovetop for smaller batches, and you’ll be extracting the maximum from your dried chiles. 

Ancho and Guajillo chili peppers turn this authentic adobo sauce into a flavorbomb! Use it to season meats or liquefy it for all sorts of stews -- so good! mexicanplease.com

Note that most recipes will ask you to reconstitute your chiles after you roast them.  This makes them more amenable to being ground up and helps diffuse their flavor into your dishes.  I typically put them in a bowl with the hottest tap water available and let them rehydrate for 20 minutes or so.  More info on reconstituting dried chiles.

And if you’re getting hungry after all this flavor talk, here are my favorite recipes on the site that use dried chiles 🙂

Beef Birria — Birria de Res

Ancho Chicken Enchiladas

Mole Coloradito Recipe

Chili Con Carne

Red Pozole

Okay, let me know if you have any questions about roasting dried chiles.  It’s super easy and it will make a huge difference in your home cooking.  

Buen Provecho. 

This is a great recipe for a huge batch of delicious enchilada sauce. It will freeze quite well so feel free to throw a few portions in the freezer. Yum! mexicanplease.com

How To Roast Dried Chiles

I use the oven for roasting big batches of dried chiles, with the stovetop being a good option for smaller batches. 
5 from 1 vote
Print Pin Rate
Prep Time: 5 minutes
Cook Time: 2 minutes
Author: Mexican Please

Ingredients

  • 2-10 dried chiles (Ancho, Guajillo, New Mexican, etc.)

Instructions

  • Wipe off any dusty crevasses of the dried chiles using a damp paper towel. De-stem and de-seed the chiles, discarding the seeds and stems.
  • Preheat the oven to 400F.
  • Add the chile pieces to a baking sheet and roast for 1-2 minutes. When using fresh, pliable chiles you can give them the full 2 minutes. Older chiles that are less pliable will turn brittle quicker so I tend to give them a healthy minute in the oven and then take a peek at them.
  • Ideally your chiles are warm, fragrant, and still pliable after roasting. If they have turned brittle or crumbly they will take on a bitter flavor.
  • Alternatively, you can preheat a skillet or comal to medim-high heat. After de-stemming and de-seeding the chiles you can add the chile pieces to the skillet and use a spatula to press them down into the heat, giving them 15-30 seconds per side.
  • Note that most recipes will ask you to reconstitute your chiles after you roast them. I typically put them in a bowl and cover them with the hottest tap water available, letting them rehydrate for 20 minutes or so. More info on reconstituting dried chiles.
Like this recipe?Click the stars above to rate it or leave a comment down below! @mexplease

 

 

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Reader Interactions

Comments

  1. Dawn

    February 21, 2022 at 2:03 pm

    Hello – This is so helpful! Thank you! I think I know why my last batch of enchilada sauce was so bitter. I followed a recipe saying to roast for 4 minutes and it should have been only half that time. Question: If a recipe says to roast 4 ounces of dried chiles, do you typically weigh them before or after de-seeding?
    Thanks again!

    Reply
    • Patrick

      February 25, 2022 at 11:56 am

      Yup I’ve been there Dawn and it’s no fun, even a little bitter 🙂

      I usually weigh the chiles before seeding as the seeds won’t affect the weight too much. Cheers.

      Reply
  2. Kathy A

    December 10, 2021 at 7:27 am

    5 stars
    Thanks Patrick for sharing your love and experience in preparing Mexican food. Chipotle in adobo sauce lead me to your website, and I have prepared several recipes that are just wonderful; bursting with flavor. I have previously made your homemade chili powder using whole, oven roasted chilis, but did not reconstitute them before grinding. Should I have done so? Would they be “gummy”? And you made mention that you also roast chipotles when making this recipe. Do you add it to the chili blend, or is it a stand alone, if so, how much should I add when making chilli? Appreciate you time.

    Reply
    • Patrick

      December 10, 2021 at 4:14 pm

      Thanks Kathy, I’m so glad you are finding some keepers on my site!

      Don’t worry about reconstituting chiles when making chile powder, you can just roast them and grind them up. Reconstituting is mostly used for liquid sauces as it helps disperse the flavor throughout the sauce.

      Yeah I sometimes use chipotles to make a standalone chile powder. It is fiery though so be careful! If it’s your first time using it I would recommend starting small when making something like chili, 1/2 teaspoon or so, and increasing from there based on how your palate reacts to the heat.

      Okay hope that helps a bit, let me know if you have any other questions. Cheers.

      Reply
      • Kathy A

        December 10, 2021 at 6:50 pm

        Thanks for responding so quickly, Patrick. I discovered your link above on more info on reconstituting chili peppers and found it to be very informative. A stand alone chipotle sauce. Wow!! You can handle more heat than I can;)! Do you think if I replaced the 2 chili de arbol with chipotle chilis, it would not overpower the Ancho and Guajillo? Chipotles are our favorite go-to chili powder and in adobe sauce, with Huy Fong Sambal Oelek chili paste is our #2 for flavor and heat.

        Reply
        • Patrick

          December 17, 2021 at 5:27 pm

          Hi Kathy! Those dried chipotles are strong so I would be tempted to start with just one and taste test from there. It’s always easy to add a bit more but it’s hard to put it in reverse. Cheers.

          Reply
  3. Robin

    May 29, 2021 at 11:43 am

    A question as I’m a novice. Is this before you use them in a recipe? How do you store them afterwards! Love your site. Love to learn new things.
    Robin

    Reply
    • Patrick

      May 31, 2021 at 2:13 pm

      Hey Robin! Yeah this is always done right before you use them in a recipe. Dried chiles keep quite well in the pantry so just leave them there ’til you need them and then give ’em a roast when they’re called for in a recipe. Cheers.

      Reply

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Hey, I'm Patrick! I spent 2 years living in Cozumel and got obsessed with Mexican food. I built this site to share all the recipes and techniques I've learned along the way. Read More…

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