GRILLED PORTOBELLO BURGERS WITH PIQUILLO PEPPER AïOLI AND WATERCRESS

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Grilled Portobello Burgers with Piquillo Pepper Aïoli and Watercress image

Provided by Tony Rosenfeld

Yield Makes 6

Number Of Ingredients 16

Aioli:
1/2 cup chopped drained piquillo peppers or roasted red peppers from jar
1 tablespoon Sherry wine vinegar
2 teaspoons finely chopped fresh thyme
1 garlic clove, minced
1/2 cup purchased mayonnaise
Cayenne pepper
Mushrooms:
6 large portobello mushrooms, stemmed, dark gills scraped out
1 sweet onion (such as Vidalia or Walla Walla), cut into 1/3-inch-thick slices
Extra-virgin olive oil
2 teaspoons chopped fresh thyme
1 large garlic clove, minced
8 ounces Idiazábal or smoked Gouda cheese, rind trimmed, thinly sliced
6 sourdough rolls (each about 4 inches in diameter), halved horizontally
1 bunch watercress, stems trimmed

Steps:

  • For aioli:
  • Puree first 4 ingredients in mini processor. Transfer to small bowl. Whisk in mayonnaise; season with salt, black pepper, and cayenne pepper. DO AHEAD: Can be made 3 days ahead. Cover; chill.
  • For mushrooms:
  • Arrange mushroom caps and onion slices on baking sheet; brush both sides with oil, then sprinkle with salt, pepper, and thyme. Turn mushrooms, gill side up, and sprinkle with garlic. Let stand at least 30 minutes and up to 2 hours.
  • Prepare barbecue (medium-high heat). Place mushrooms, gill side up, and onion slices on rack. Cook until grill marks appear, about 4 minutes. Turn vegetables over, transferring to cooler part of grill. Cover and cook until mushrooms are very tender and onion slices still retain some texture, about 8 minutes. Turn mushrooms, gill side up; top with cheese. Arrange rolls, cut side down, on grill. Cover; cook until cheese on mushrooms melts and cut sides of rolls are golden, about 1 minute longer.
  • Arrange roll bottoms on plates; spread with aioli. Top each with mushroom, onion slice, and watercress. Spread cut side of roll tops with aioli; press onto watercress.

Axmed shirdoon
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I'm not a big fan of portobello mushrooms, but I loved these burgers. The piquillo pepper aioli really made them special.


Daniel McIntosh
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These burgers are a great way to change up your burger routine. They're healthy and delicious.


Basant Singh
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I love the combination of flavors in these burgers. The portobellos, the piquillo pepper aioli, and the watercress all work together perfectly.


Laptop Gh
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These burgers are the perfect summer cookout food. They're easy to make and they're delicious grilled.


Ghulam Sadiq
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I've made these burgers several times and they're always a hit. They're a great way to get your kids to eat their vegetables.


Lee Britten
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These burgers are so easy to make and they're always a crowd-pleaser.


sandy reed
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I love the smoky flavor of these burgers. The piquillo pepper aioli is also a great addition.


Mirabel Biyeh
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These burgers are a great healthy alternative to traditional beef burgers. They're packed with flavor and they're good for you too.


MELESE SEIFU
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I made these burgers for a party and they were a big hit. Everyone loved them, even the meat-eaters.


Wizy Naso
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These burgers are a great way to use up leftover portobello mushrooms. I had some leftover from a stir-fry and they were perfect for these burgers.


idrees sardarzai
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I'm always looking for new vegetarian recipes and these burgers fit the bill perfectly. They're easy to make and they're delicious. I'll definitely be making them again.


Mr Trap
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I made these burgers for my husband and he loved them! He said they were the best veggie burgers he's ever had.


SAMIR ALAM
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These burgers are a great way to get your kids to eat their vegetables. My kids loved the portobello burgers and they didn't even realize they were eating mushrooms!


Nany Sak
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I'm not a vegetarian, but I love these burgers! They're so flavorful and satisfying. I especially love the smoky flavor of the grilled portobellos.


Fortune cristelle
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These burgers are amazing! The portobello mushrooms are grilled to perfection and the piquillo pepper aioli is the perfect complement. I will definitely be making these again.


Marie Lapierre
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I made these burgers for a cookout and they were a hit! Everyone loved the smoky flavor of the grilled portobellos and the creamy piquillo pepper aioli. The watercress was a nice touch, too. It added a bit of freshness and crunch.


brian kyei
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Portobello burgers are one of my favorite vegetarian dishes because they feel juicy and substantial in the same way a beef burger does. These grilled portobello burgers were especially good because of the smoky flavor imparted by the grill and the de