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Roasted Jalapeños (Oven and Air Fryer Instructions)

Make a batch of Roasted Jalapeños and use them throughout the week to spice up your meals! They're a great addition to tacos, in creamy dips, in jalapeño burgers, or as a spicy side dish or sandwich addition. This recipe uses only jalapeños and olive oil and is super easy!

I'll give you cooking directions for making air fryer roasted jalapeños and oven-roasted jalapeños, and of course—give you tons of ideas for how to use these roasted jalapeños. This recipe is naturally gluten-free, vegan, and vegetarian.

Blistered jalapeños on a plate
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Blistered jalapeños

Roasting jalapeños mellows our their spicy flavor a little, brings out their natural smokiness, and highlights their subtle sweetness. Jalapeños get a little blackened, charred, and blistered on the bottom and around the edges as they roast, which is delicious and fancy-looking.

Jalapeños are typically inexpensive—the 6 jalapeños I used for this recipe cost me only $0.79 cents! So they're a great way to add a little spice, add a little veggies, and add loads of flavor to your meals for very little money.

Roasted jalapeños piled up on a plate

I'm not suggesting serving just jalapeños as a side dish on their own (unless of course you like a lot of spice!). But adding 1-2 pieces of roasted jalapeños next to your protein for dinner along with a few other veggies, stirring some into homemade salsa or creamy dips, or chopping up a few to add to tacos or salads is a great idea!

Fork showing underside of a roasted jalapeño

More jalapeños recipes: Fried Jalapeños

How to use roasted jalapeños

My absolute favorite way to use roasted jalapeños is by chopping them up and using them in this cheesy chicken corn dip. It's a no-bake dip that can be prepared in a few minutes, so if you have already roasted jalapeños you can just stir them right in for a nice subtle heat!

I sometimes cook extra shredded chicken to make the "dip" into a main dish for dinner. It's so so so good!!

Other uses for roasted jalapeños:

Hand holding piece of blistered roasted jalapeño

More recipes using fresh jalapeños: Hot Pepper Jelly

How to prepare jalapeños for roasting

Wear disposable kitchen gloves to prevent painful jalapeño spice burns to your skin, eyes, or under your nails.

Start by slicing the jalapeños in half lengthwise to make a boat shape. Use your knife to carefully separate the pith and seeds from the inside of the jalapeño, then scoop out all the pith and seeds. Rinse the seeds out if any stubborn seeds are stuck inside.

It's your choice whether to remove the stems. I leave them on if I plan on serving roasted jalapeños on their own as a side dish, but I chop the stems off if I plan blending them into a dip or adding them to a sandwich or tacos.

Sliced jalapeños with seeds removed on a cutting board

More recipes using jalapeños: Jalapeño Leek Cornbread

How to roast jalapeños in the oven

Preheat oven to 375F. Spray a baking sheet with olive oil, arrange the halved cleaned-out jalapeños on the baking sheet and spray lightly with olive oil (I love this refillable olive oil sprayer! It has paid for itself over and over compared to buying disposable cooking spray cans!).

Roast at 375F for 25-30 minutes or until they are cooked to your liking, flipping halfway through.

Sliced jalapeños sprayed with oil on a baking sheet

How to make roasted jalapeños in the air fryer 

If your air fryer requires preheating, preheat to 350F. Place the halved cleaned-out jalapeños on your air fryer basket or pan. Air fry for 8-12 minutes at 350F, or until they are cooked to your liking, flipping halfway through.

All air fryers cook differently so make sure to check on the jalapeños before the cook time is up to make sure they're not burning or turning too black.

Recipe tips and notes

→ PLEASE PLEASE wear disposable kitchen gloves to cut and clean out the jalapeños! Their oils stay on your hands for 1-2 days even if you washed your hands, and it will burn a lot if the oils get under your nails, if you have invisible micro-cuts, or if you rub your eyes (or other sensitive areas).

→ Adjust the cook time to your preference! The jalapeños in my pictures are roasted for a full 30 minutes (or a full 12 minutes in the air fryer), and they are very soft. If you prefer them to retain their crispness, roast them for less time.

→ Why not roast some other veggies while you have the oven on?? Add a few garlic cloves (or slice the top of a head of garlic and drizzle with oil. Add some sliced bell peppers to roast. Slices zucchini, yellow squash, cubed butternut squash, small cubed sweet potatoes would all have roughly the same cook time as jalapeños so you can get more done in the same time!

If you enjoyed this recipe, let me know with a comment and a star rating below. And don't forget to share it on Facebook and save it on Pinterest for later!

Blistered roasted jalapeños arranged on a plate
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5 from 5 votes

Roasted Jalapeños (Oven and Air Fryer Instructions)

Roasted jalapeños are great served with chicken, fish, over tacos, in sandwiches. Stir them into soup, chili, creamy dips, and many other recipes. Read below for air fryer and oven instructions for making blistered jalapeños.
Prep Time5 mins
Cook Time30 mins
Total Time35 mins
Course: Side Dish
Cuisine: American
Diet: Gluten Free, Vegan, Vegetarian
Servings: 4
Author: Kate

Ingredients

  • 1 lb fresh jalapeños peppers - (or use less if that's what you have)
  • olive oil spray - (or about ½ tablespoon olive oil)

Instructions

  • Wear disposable kitchen gloves. Slice the jalapeños in half lengthwise. Use a knife to carefully separate the pith from the inside of the jalapeños. Scoop out the pith and seeds. Rinse the jalapeños to remove the seeds, if needed.
    Remove the stem if you plan on using the jalapeños in other recipes instead of eating them on their own.
Oven roasted jalapeños
  • Preheat oven to 375F. Spray a baking sheet with olive oil, arrange the halved cleaned-out jalapeños on the baking sheet and spray lightly with olive oil. Roast at 375F for 25-30 minutes or until they are cooked to your liking, flipping halfway through.
Air fryer roasted jalapeños
  • If your air fryer requires preheating, preheat to 350F. Place the halved cleaned-out jalapeños on your air fryer basket or pan. Air fry for 8-12 minutes at 350F, or until they are cooked to your liking, flipping halfway through.
    All air fryers cook differently so make sure to check on the jalapeños before the cook time is up to make sure they're not burning or turning too black.

Notes

Try roasting other veggies at the same time, such as sweet bell pepper slices, sliced zucchini, broccoli florets, or butternut squash.

Nutrition

Calories: 32kcal (2%) | Carbohydrates: 5g (2%) | Protein: 1g (2%) | Fat: 1g (2%) | Saturated Fat: 0.2g (1%) | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 1g | Sodium: 3mg | Potassium: 198mg (6%) | Fiber: 2g (8%) | Sugar: 3g (3%) | Vitamin A: 420IU (8%) | Vitamin C: 91mg (110%) | Calcium: 11mg (1%) | Iron: 0.4mg (2%)

The nutritional information displayed is an estimate and not to be used as dietary or nutritional advice. Consult a nutritionist or dietician for nutritional info based on the exact ingredients you use.

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