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Home/Autumn Leaves/Creamy Cauliflower Leek Soup with Curried Mustard Croutons

Creamy Cauliflower Leek Soup with Curried Mustard Croutons

I was walking through the Portland Farmers Market several weeks ago and did a double-take on a stack of orange cauliflower. SOUP came immediately to mind.

Creamy Cauliflower Leek Soup with Curried Mustard Croutons | LunaCafe

I adore cauliflower (the earthy flavor, the crunchy or creamy texture), and the only nit I can pick with this lovely vegetable is its color. It gets lost on a white plate and looks pallid and unimaginative next to other basic ingredients I love, such as potatoes, rice, pasta, and poultry.

Creamy Cauliflower Leek Soup with Curried Mustard Croutons | LunaCafe

There are ways to work around this of course. Roasting comes to mind, as does tossing in buttered breadcrumbs. But I know in my heart that I eat more broccoli than cauliflower, not because I like broccoli better than cauliflower (rather the reverse) but because broccoli is green and green makes magic on the plate.

Creamy Cauliflower Leek Soup with Curried Mustard Croutons | LunaCafe

So there I was, staring at ORANGE cauliflower. I was enthralled with the gorgeous color and bought two heads. But what to do with it?

Creamy Cauliflower Leek Soup with Curried Mustard Croutons | LunaCafe

The first recipe that came to mind was one I made for my students at the Northwest Culinary Academy: a silky, subtle cauliflower soup. I looked up the recipe when I got back to the OtherWorldly Kitchen–and yawned. Subtlety does not interest me as it used to. Big bold flavor interests me.

Creamy Cauliflower Leek Soup with Curried Mustard Croutons | LunaCafe

Luckily, cauliflower can hold its own with big bold flavor, even curry spices, mustard, or both. So I reached in the frig for a jar of Dulcet Madras Curry Mustard and this new soup is the result. Don’t worry though. If you don’t happen to have this marvelous condiment on hand, I give you an acceptable substitute in the recipe.

Creamy Cauliflower Leek Soup with Curried Mustard Croutons | LunaCafe

But first, you must buy the cauliflower.

Buying Cauliflower

When buying fresh cauliflower, look for heavy, firm heads. There should be no discoloration (brown patches) on the florets (also called curds) and the leaves should be crisp, not limp. Color ranges from creamy white, to green, orange, and even purple. Purple cauliflower turns green when cooked, so maximize its unusual color by serving it as part of a crudité platter or other cold dish. You may also encounter the Romesco cauliflower, which is pyramid-shaped and a gorgeous yellow-green. Or Broccoflower, which is green all the way through.

And then prepare it.

Preparing Cauliflower

The only time I have cut myself seriously in the kitchen is in preparing a large cauliflower, so a word to the wise. Keep the hand that is holding the cauliflower BEHIND the blade of the knife. I’m just sayin’.

  1. Pull off and discard the green leaves that surround the base of the cauliflower.
  2. Position the cauliflower head down on a cutting board and work a sharp knife around the base in a cone shaped fashion. Your objective is to remove the stalk that holds the florets together. Make sure you keep the hand that is holding the cauliflower out of the way of the knife blade.
  3. Now that the stalk is removed, you can more easily see how the florets attach to the core. Slice each floret cluster through its base, separately it from the head.
  4. Break large clusters of florets into smaller pieces.

You can also watch this How to Cut Cauliflower video. I appreciate this chef’s approach, because he is careful to preserve the integrity of each floret (no cut sides).

Creamy Cauliflower Leek Soup with Curried Mustard Croutons | LunaCafe

Creamy Cauliflower Leek Soup with Curried Mustard Croutons

An earlier version of this seductive soup surprised many of my culinary students who claimed to loath cauliflower. The cauliflower flavor note is definitely front and center, but it is softened and rounded with melted leeks and onion and then brightened with curried mustard and fresh lemon. Crunchy croutons add textural contrast and a surprising flavor hit of their own.

2 tablespoons unsalted butter
1 tablespoon cold-pressed, extra virgin olive oil
2 large leeks, white and pale green section only, cleaned, trimmed and sliced (3 cups sliced)
1 large yellow onion, peeled, trimmed, and chopped (2 cups chopped)
1 tablespoons Dulcet Madras Curry Mustard (or 2 teaspoons Dijon mustard and 1 teaspoon curry paste)

1 large or 2 small heads orange cauliflower, separated into small flowerets (2 pounds trimmed)
4 cups chicken or vegetable stock (and possibly up to 1 cup more)

1½ cups cream

1 teaspoon fine sea salt, plus more to taste
freshly ground white pepper

Garnish
Curried Mustard Croutons (recipe below)
cold pressed, extra virgin olive oil

  1. In a soup pot, melt butter and oil over medium heat.
  2. Add leeks and onion, and cook slowly to soften without browning, about 15 minutes.
  3. Add mustard and stir to combine.
  4. Add cauliflower and stock, bring to a simmer, and partially cover.
  5. Simmer until cauliflower is tender, about 10 minutes, replenishing the stock if it reduces too much.
  6. Using an immersion blender, puree the soup. (You can also let the soup cool somewhat, and then puree it in a blender or processor.)
  7. Add the cream and whisk to combine. Bring just to a simmer. Adjust the consistency of the soup by adding more stock if necessary.
  8. Season to taste with salt and white pepper.
  9. Ladle into serving bowls. Garnish each serving with Curried Mustard Croutons and a drizzle of olive oil.

Makes about 10 cups; serves 6-8.

Curried Mustard Croutons

Croutons add a great textural contrast to soups and salads. These zippy croutons add a flavor boost as well.

2 tablespoons unsalted butter, melted
1 tablespoon cold-pressed, extra virgin olive oil
1 tablespoon Dulcet Madras Curry Mustard (or 2 teaspoons Dijon mustard and 1 teaspoon curry paste)
5-6 ounces cut or torn French or Italian bread
coarse sea salt in grinder
black pepper in grinder

  1. In a large mixing bowl, whisk together the butter, olive oil, and Dulcet Madras Curry Mustard.
  2. Add the torn or cut bread and toss to coat with the mustard mixture.
  3. Grind salt and black pepper over the croutons and toss to distribute evenly.
  4. Arrange croutons on an edged baking sheet and bake at 350° for about 15 minutes, turning with a spatula once or twice in the process. Croutons with be crunchy and golden brown here and there when done.
  5. Remove from the oven and let cool on the baking sheet.
  6. Store in airtight freezer bags until needed. Croutons will keep for a few days. Rewarm to freshen.

Cookin’ with Gas (resources from around the web)

  • About Cauliflower
  • Recipe Tips: All About Cauliflower
  • Oven Roasted Cauliflower with Turmeric & Ginger | Bobby Flay, Food Network
  • Roasted Cauliflower Popcorn | 101 Cookbooks
  • Roasted Cauliflower with Coriander and Cumin Seeds | Gourmet
  • Roasted Cauliflower with Dukkah | Steamy Kitchen
  • Roasted Cauliflower with Ginger and Mint | Martha Stewart
  • Roasted Golden Cauliflower with Panko and Pecorino | Sugarlaws
  • Saffron Roasted Cauliflower | Chocolate & Zucchini
  • Whole Roasted Cauliflower with Olive Oil and Capers | Gourmet

Copyright 2012-2020 Susan S. Bradley. All rights reserved.

Written by:
Susan S. Bradley
Published on:
January 20, 2020

Categories: Autumn Leaves, Cauliflower | Romanesco, Fall & Winter Soups, Soups | Bisques | ChilisTags: Autumn Leaves, cauliflower, croutons, Curried Mustard Croutons, curry, mustard, recipe, Soup

About Susan S. Bradley

Intrepid cook, food writer, culinary instructor, creator of the LunaCafe blog, author of Pacific Northwest Palate: Four Seasons of Great Cooking, and former director of the Northwest Culinary Academy.

Reader Interactions

Comments

  1. Jessica Bailey

    January 28, 2020 at 7:00 pm

    This healthy soup sounds so delicious. I cant wait to make it this week!

    • Susan S. Bradley

      February 3, 2020 at 9:44 am

      Thanks Jessica! 🙂

  2. Billy

    August 22, 2013 at 6:17 pm

    I love the combo of cauliflower and curry. You don’t see it often but it is super tasty. I can’t wait for some cooler weather here in Atlanta so I can make some soup.

    • Susan S. Bradley

      August 29, 2013 at 9:24 am

      Thank you, Billy! I’m waiting for cooler weather as well. all of a sudden, I want to cook fall dishes, even though the temperature is still in the 80’s most days. I think you’ll love this soup.

  3. Dana Zia

    November 14, 2011 at 10:26 am

    My last CSA box arrived last week with a huge head of cauliflower and I think this recipe has its name on it. yum. Off to the kitchen! (I bet you’ve been thinking about Thanksgiving for weeks now, haven’t you??)

  4. Victoria Challalncin

    November 14, 2011 at 10:07 am

    You always have original and appealing ideas. I love the mustard croutons as a perfect accompaniment to this soup. Nice! Thanks.

  5. Kate

    November 14, 2011 at 7:13 am

    I am so happy that we are getting fresh cauliflower in the market. I love it. Your soup sounds heavenly. I have bookmarked it!

Trackbacks

  1. Basic Little Potato & Five Onion Soup: Five Ways says:
    February 1, 2015 at 1:22 pm

    […] Creamy Cau­li­flower Leek Soup with Cur­ried Mus­tard Crou­tons […]

  2. New Year's Day Black Bean Ancho Chili says:
    February 1, 2015 at 1:20 pm

    […] Creamy Cau­li­flower Leek Soup with Cur­ried Mus­tard Crou­tons […]

  3. Triple Celery Soup with Parmesan, Parsley & Garlic Croutons & Parsley Oil says:
    November 6, 2014 at 12:09 pm

    […] Creamy Cau­li­flower Leek Soup with Cur­ried Mus­tard Crou­tons […]

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Susan S. Bradley

Intrepid cook, food writer, culinary instructor, creator of the LunaCafe blog, author of Pacific Northwest Palate: Four Seasons of Great Cooking, and former director of the Northwest Culinary Academy. Read More…

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