How to Roast a Jalapeno Pepper in the Oven

Simple recipe with step by step instructions for how to roast jalapeño peppers in the oven.

Roasted jalapeno peppers have a wonderful sweet heat that can be used in many dishes, from salsas to dips, beans, tacos and more. These instructions for how to roast a jalapeño pepper is super simple.

Raw jalapeno peppers halved and cored on a cutting board.

Core The Peppers First

Cut the jalapeno peppers in half and remove the inner membrane and seeds.

Expert Tip! Jalapeño peppers can have a significant amount of heat. If you have sensitive skin, it may be necessary to wear plastic gloves to protect your skin from the oils of the jalapeno peppers.

Raw jalapeno peppers on a baking sheet.

Place On A Cutting Board

Place the jalapeno peppers, cut side down, on a baking sheet. If desired, line the baking sheet with aluminum foil.

Baking sheet of roasted peppers on a baking sheet.

How Long To Roast Jalapeño

Set and preheat the oven to broil. Place the jalapeño peppers in the oven and cook for 7-10 minutes. The skin will wrinkle and start to char and bubble. This is good!! There is incredible flavors with this charring.

Expert Tip! Watch the peppers though, because if they are in the oven too long, they will burn more than you want. The charring and bubbling on top is good but any burning of the inner flesh can cause the peppers to have an ‘off’ taste.

Roasted peppers in a freezer bag that is showing steam and moisture on the plastic bag.

Immediately Put In Ziploc Bag

Right after the peppers come out of the oven, place them in a ziploc bag and seal it. This causes the heat in the jalapeño peppers to create steam. This further cooks the peppers and pulls the skin away from the flesh of the peppers. Keep them in the sealed bag for a minimum of 20 minutes.

Roasted peppers on a cutting board with the skin being removed.

Remove The Skin

Remove the jalapeño peppers from the bag and pull the skin off the pepper. Discard the skins. Since it is so easy learning how to roast a jalapeño pepper, you can now use the peppers in any dish that you desire the sweet heat of the roasted jalapeño pepper.

Recipes For Roasted Jalapeño

How to Roast Jalapeño Peppers

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Simple recipe with step by step instructions for how to roast jalapeño peppers in the oven.
Prep Time: 5 minutes
Cook Time: 10 minutes
Resting Time: 20 minutes
Total Time: 35 minutes
Servings: 4


  • 4 jalapeno peppers


  • Cut the stem off jalapeño peppers. Then cut in half longwise. Remove all the seeds and membrane from the inside of the peppers.
  • Place on a baking sheet, cut side down. Make sure to space the peppers so that they are not touching.
  • Preheat the oven to broil. Place the baking sheet with peppers in the oven and roast for 7-10 minutes. The skin should start to brown and slightly bubble on top of the peppers.
  • Remove from the oven and immediately place in a large ziploc bag and seal shut. Let the peppers rest in the bag for 20 minutes. This will cause the hot peppers to steam inside the bag and the skin will pull away from the peppers.
  • Remove the peppers from the bag. Peel the skin off the peppers. Now the roasted jalapeño peppers are ready to be used in recipes.


Per serving:

Calories: 4kcalCarbohydrates: 1gProtein: 0.1gFat: 0.1gSaturated Fat: 0.01gSodium: 0.4mgFiber: 0.4gSugar: 1g

Nutrition Disclaimer


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  • Tried this recipe. Used toaster oven. Cooked an extra 10 minutes and they came out exactly as you said they would.

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  • Perfect Thank you! I would have never known to peel the skins. And then, what if you wanted to can some like these?

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  • Love this, super simple and clearly explained. These are gonna go in some barbacoa beef tomorrow. Thank you! They smell so good too!

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  • Love this, super simple and clearly explained. These are gonna go in some barbacoa beef tomorrow. Thank you!

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  • Thank you for posting this. It worked perfectly and I used the peppers in my jalapeno popper dip!!!

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    • So glad it worked out for you!!!

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  • How long will these last after they’ve been roasted?

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    • I would say a few days in the fridge. Similar to any cooked vegetable.

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  • Thank you! Helped make a perfect pureed roasted veggie soup. Delicious.

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    • OOPS! I forgot to mention I used it on serrano peppers and it worked perfectly even though they are smaller than jalapenos.

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  • Great information !!! Simply stated, well illustrated !
    First attempt worked like a charm. Thank you !!!

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  • Awesome and quick recipe. I left some of the seeds in for some added heat!

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  • Thanks for the help. Worked really well.

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