Charred Asparagus Tacos With Creamy Adobo and Pickled Red Onions

Come early spring, these tacos are perfect for celebrating asparagus season.

By
J. Kenji López-Alt
Kenji Lopez Alt
Culinary Consultant
Kenji is the former culinary director for Serious Eats and a current culinary consultant for the site. He is also a New York Times food columnist and the author of The Food Lab: Better Home Cooking Through Science.
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Updated August 27, 2024
Closeup of Charred Asparagus Tacos With Creamy Adobo and Pickled Red Onions, served with lime wedges.

Serious Eats / J. Kenji López-Alt

Why It Works

  • Toasting dried ancho chiles in a skillet before soaking them for the adobo sauce improves their flavor.
  • A mix of white and green asparagus gives complexity to the taco filling.
  • Charring the asparagus spears creates a nice contrast between the vegetable's sweetness and the bitter blackened spots.

Meaty tacos are great, but who doesn't love charred sweet asparagus in the springtime? I like to cook mine in olive oil until nearly blackened in spots so that you get a nice contrast between the natural sweetness of the 'gus and the smoky, browned complexity of the charred spots. If you've got a charcoal grill, all the better.

The key to getting your asparagus to work in taco form is to cut it into pieces that are small enough that you don't drag whole stalks out of the tortilla as you bite in, but still large enough that you get a good meaty bite when you shove that folded double-stacked tortilla in your mouth.

If you're lucky enough to live near a farmers' market or good supermarket, now's the time to try out as many different types of asparagus as possible. Slender, sweet green stalks are delicious, but their fatter, meatier purple cousins are great as well. The Spanish specialty white asparagus is grown with dirt piled on top of it, completely depriving it of sunlight—a process called etiolation. Without sunlight, the stalks form no chlorophyll and stay a ghostly white. They're getting easier to come by in the states these days and boast a delicately bitter flavor and mild sweetness.

I like to use a mix of stalks to give some complexity to my tacos.

For condiments, you could go with a bright green salsa verde if the asparagus isn't already enough green for you (I like to cut mine with a bit of sour cream to add a touch of richness to the taco), or when the good tomatoes start coming in, a nice roasted tomato salsa would also be a fine choice. In this case, I happened to have some homemade adobo sauce left over from when I made beef barbacoa tacos last week. After combining it with some sour cream, its rich, roasted chile flavor paired so perfectly with the asparagus that I think it's worth making a separate batch for your asparagus tacos even if you don't have leftovers sitting around in your fridge like I did.

The base for the adobo sauce is roasted whole chiles along with a few canned chipotles. I use a few different types of dried chiles to add some complexity to the finished dish, but if you're looking for a quicker, easier, no-cook alternative, simply blending together some canned chipotles with equal parts sour cream and a squeeze of lime juice makes a fine taco condiment.

Additional garnishes are totally at your discretion, but might I recommend some pickled red onions, chopped cilantro, and some crumbled queso fresco or cotija cheese?

Seriously—make these at your next cookout, and I guarantee that nobody will ask you where the burgers are.

May 2012

Recipe Details

Charred Asparagus Tacos With Creamy Adobo and Pickled Red Onions Recipe

Prep 5 mins
Cook 30 mins
Active 30 mins
Total 35 mins
Serves 4 servings

Ingredients

  • 2 ancho chiles, stemmed and seeded

  • 2 tablespoons vegetable oil

  • 1 small onion, finely sliced

  • 2 medium cloves garlic, grated on a microplane grater (about 2 teaspoons)

  • 2 teaspoons dried oregano

  • 1 tablespoon cider vinegar

  • 1 chipotle chile and 1 tablespoon sauce from 1 can chipotles in adobo

  • 2/3 cup sour cream or Mexican crema

  • 2 teaspoons fresh juice from 2 limes

  • Kosher salt and freshly ground black pepper

  • 2 1/2 pounds asparagus (green, white, or a mix), bottoms trimmed, cut into 1-inch segments

  • 24 corn tortillas warmed

  • Pickled Red Onion

  • Queso fresco or queso cotija

  • Fresh cilantro leaves

  • Lime wedges

Directions

  1. Heat ancho chiles in a medium skillet over high heat, turning occasionally, until toasted and fragrant, about 3 minutes. Transfer to a microwave-safe measuring cup and cover with 1 cup water. Microwave on high heat until just simmering, about 3 minutes. Let steep until chiles are softened. Drain chiles, reserving liquid.

  2. Meanwhile, heat 1 tablespoon oil in now-empty skillet over medium-high heat until shimmering. Add onion, and cook, stirring frequently until softened and lightly browned, about 8 minutes. Add garlic and oregano and cook, stirring frequently, until fragrant, about 30 seconds. Add vinegar, chipotle chile and sauce, and reserved chile-soaking liquid. Scrape up browned bits from bottom of pan. Transfer contents to jar of a blender along with soaked chiles, sour cream, and lime juice. Blend on high speed until completely smooth, about 1 minute. Season to taste with salt and pepper and set aside.

  3. Heat remaining tablespoon of oil in a large skillet over high heat until smoking. Add asparagus, season with salt and pepper, and cook without moving until well charred on bottom, about 2 minutes. Toss and repeat, allowing asparagus to char before tossing again. Repeat until all asparagus is charred and softened, 8 to 10 minutes total. Transfer to a large plate.

  4. Form 12 double stacks of tortillas. Spread a tablespoon of sauce over each one. Divide asparagus evenly between tortillas. Top with pickled onions, cheese, and cilantro. Serve immediately with lime wedges and extra sauce.

Special Equipment

Microwave, medium and large skillet (not nonstick); blender

Read More

Nutrition Facts (per serving)
570Calories
29gFat
66gCarbs
20gProtein
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Nutrition Facts
Servings: 4
Amount per serving
Calories570
% Daily Value*
Total Fat 29g37%
Saturated Fat 12g58%
Cholesterol 55mg18%
Sodium 788mg34%
Total Carbohydrate 66g24%
Dietary Fiber 14g50%
Total Sugars 10g
Protein 20g
Vitamin C 34mg169%
Calcium 385mg30%
Iron 5mg28%
Potassium 1167mg25%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

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