Hearty Escarole, Barley, and Parmesan Soup Recipe

An easy and hearty vegetarian soup packed with escarole, and barley, all flavored with rosemary, parmesan, and olive oil.

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 November 28, 2023
A ladle full of vegetarian escarole and parmesan soup is held up for the camera. A saucepan of the soup is visible in the background.

Serious Eats / J. Kenji López-Alt

Why It Works

  • Sautéing the escarole along with the other aromatics tames its bitterness.
  • Barley adds heartiness, making this an ideal entrée soup.
  • Tomato paste, soy sauce, parmesan, and optional fish sauce add layers of savoriness.
  • A finishing drizzle of good olive oil adds richness.

Several years ago, I co-hosted an event at the New York Wine & Food Festival in which a few of our favorite chefs cooked their favorite soups. My favorite of the bunch: Marco Canora's escarole soup.

His version had these terrific little chicken dumplings, but seeing as I have a wife who leans vegetarian and I myself tend not to eat much meat in my off-duty hours, I wanted to convert this great concept into a more veg-friendly version.

Building the Foundation

It starts off pretty similarly to the meaty version, with a sauté of mirepoix—diced onions, celery, and carrots.

A mirepoix is cooked in a saucepan.

Serious Eats / J. Kenji López-Alt

Once they're sweated out, I add garlic and rosemary. The latter is a key ingredients for many of the vegetarian soups I make. Added raw at the end of a dish, it can have an overpowering flavor, but cooked down from the start, it mellows, adding a savoriness that permeates the entire dish.

Escarole is added to the mirepoix.

Serious Eats / J. Kenji López-Alt

Braised greens are a non-intuitive but fantastic alternative to meat in many of my vegan recipes. The idea first struck me when I tasted the braised greens and shallot sandwich at my friend Charles Kelsey's Boston sandwich shop Cutty's. I made my own version with braised kale last year. It's juicy, savory, and intensely satisfying.

In soup, greens work just as well. To maximize their flavor extraction, it's best to sauté them along with the rest of the vegetables. Here I'm using escarole, which has a very mild bitterness that mellows with sautéing, while at the same time intensifying its natural sweetness.

Adding a Depth of Flavor

The escarole cooks down a bit, mellowing out.

Serious Eats / J. Kenji López-Alt

Tomato paste, packed with glutamatic acid adds both savoriness and a bit of body to the finished soup. I sauté it until all the vegetables are coated and they start to sizzle, indicating that most of the excess moisture in the pot has evaporated. My version isn't going to have chicken dumplings, but pearled barley adds the requisite heartiness to turn this soup into a main course.

With the veg sautéed, the rest is all about simmering. Chef Canora uses an incredible broth made at his restaurant with whole turkeys, chickens, and beef bones simmered all day in giant pots. I have neither the inclination nor the wallet to use whole birds just for the sake of stock, but I do make chicken stock at home using trimmings from birds whenever I collect enough of them.

In fact, you can even use store-bought chicken or vegetable broth for this soup because we've got a secret trick to bump up the flavor: a couple of bay leaves and a hunk of Parmesan rind (actually Grana Padano rind in this case). More importantly, the proteins extracted from the cheese help emulsify the soup so that rather than having a slick of olive oil on the surface, it gets evenly incorporated into the broth.

Fish sauce is added to the soup straight from the bottle.

Serious Eats / J. Kenji López-Alt

The last trick? A couple of extra umami bombs: a dash of soy sauce and, if you're not going strictly vegetarian, fish sauce as well, which contains inosinic acid, another compound that works in conjunction with glutamic acid to trigger your sense of savoriness.

Served with a drizzle of really good extra virgin olive oil (my current favorite is the awesome Arbequina oil from Séka Hills) and a grating of cheese and you've got a fall soup so comforting and filling that you'll never question its meatless status.

Perhaps Chef Canora will have something to say about my bastardization of his beloved soup, but even if he puts me out, I'll take it, knowing I've got a big ol' bowl of comfort waiting for me at home.

November 2013

Recipe Details

Hearty Escarole, Barley, and Parmesan Soup Recipe

Cook 50 mins
Active 20 mins
Total 50 mins
Serves 4 to 6 servings

Ingredients

  • 1/4 cup extra-virgin olive oil, plus more for serving

  • 1 medium onion, finely chopped (about 1 cup)

  • 1 large carrot, finely diced (about 1 cup)

  • 2 medium stalks celery, finely diced (about 1 cup)

  • 2 tablespoons chopped fresh rosemary leaves

  • 3 medium cloves garlic, minced (about 1 tablespoon)

  • 1 large head escarole, chopped into 1-inch pieces

  • 2 tablespoons tomato paste

  • 1/2 cup pearled barley

  • 1 1/2 quarts low-sodium store-bought or homemade vegetable or chicken stock

  • 2 bay leaves

  • 4-inch chunk Parmesan rind

  • 2 teaspoons soy sauce

  • 1 teaspoon fish sauce (optional)

  • Kosher salt and freshly ground black pepper

  • 1/4 cup chopped fresh parsley leaves

  • Parmesan cheese, for serving

Directions

  1. Heat olive oil in a large saucepan over medium-high heat until shimmering. Add onions, carrots, and celery. Cook, stirring occasionally, until softened but not browned, about 4 minutes. Add rosemary and garlic and cook, stirring, until fragrant, about 1 minute. Add escarole and cook, stirring occasionally, until wilted, about 5 minutes. Add tomato paste and continue to cook, stirring frequently, until liquid has evaporated and mixture begins to sizzle, about 5 minutes longer. Add barley and cook, stirring, until coated with oil, about 1 minute.

    Barley and tomato paste are added to the sautéed vegetables.

    Serious Eats / J. Kenji López-Alt

  2. Stir in broth. Add bay leaves, parmesan rind, soy sauce, and fish sauce (if using), and bring to a boil. Reduce to a bare simmer and cook, stirring occasionally, until barley is softened and soup has absorbed flavor from parmesan and bay leaves, about 25 minutes. Season to taste with salt and pepper. Stir in parsley. Serve, drizzling with olive oil and sprinkling with parmesan.

    Broth, bay leaves, and parmesan rinds are added to the saucepan.

    Serious Eats / J. Kenji López-Alt

Read More

Nutrition Facts (per serving)
216Calories
11gFat
21gCarbs
9gProtein
×
Nutrition Facts
Servings: 4 to 6
Amount per serving
Calories216
% Daily Value*
Total Fat 11g14%
Saturated Fat 2g10%
Cholesterol 3mg1%
Sodium 1086mg47%
Total Carbohydrate 21g8%
Dietary Fiber 11g38%
Total Sugars 4g
Protein 9g
Vitamin C 19mg94%
Calcium 218mg17%
Iron 4mg21%
Potassium 1182mg25%
*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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