The humble cauliflower strikes again in our easy recipe of Roasted Cauliflower Soup. Roasting brings out the subtle sweetness of the cauliflower as the florets become lightly caramelized. The roasted cauliflower is combined with fresh leeks, garlic, seasonings and broth. Puréed in a blender, then adding a bit of cream gives this soup a rich, thick bisque-like goodness.
What goes into our Roasted Cauliflower Soup?
- Fresh leeks
- Thyme sprigs
- Smoked paprika
- Homemade chicken broth (or use storebought)
- Heavy Cream
All about cauliflower soup:
This soup is luxuriously creamy and rich. It is so thick, it is actually more of a bisque than a soup.
- The cauliflower thickens the soup so there is no need for flour or cornstarch.
- Cream adds a luxurious richness and depth to the soup
- Cauliflower soup will last up to 4 days in the fridge.
- You can freeze cauliflower soup for up to 6 months.
Tips for making roasted cauliflower soup.
- Don’t overcrowd the cauliflower on the roasting pan. If you pile too much cauliflower on a baking sheet then it will just steam instead of roast. The goal is to roast the cauliflower florets until they are golden brown and slightly caramelized. The roasting process brings out some sweetness and depth of flavor.
- Don’t burn the garlic. When you add the garlic to the pot, cook it just until it is fragrant. It only takes about 30 seconds to cook the garlic. If you cook it too long before adding liquid, it will burn and get bitter.
- Don’t overcrowd the blender. You will need to add some broth to the blender along with the roasted cauliflower. Make sure you only add enough broth to blend the cauliflower. You can add the rest of the broth after you transfer it back to the pot.
- Turn the heat down when you add the cream. If you boil the soup after you add the cream then it will curdle. Make sure you turn the heat down when you add the cream.
- For a dairy-free soup, substitute coconut cream.
- For a low-fat version of this soup, substitute Greek yogurt for the cream.
What is the difference between a soup, a cream soup, a bisque, or a chowder?
- By definition a cream soup has the cream added at the end of the cooking process. The soup must not get too hot or you risk the cream splitting. Also, cream is not the only type of thickener used in a cream soup. Alternatives to making a soup creamy are flour, potatoes or in our recipe in this post, cauliflower. The cream does not have to be a dairy cream. Coconut cream, coconut milk and other nut milks are excellent alternatives if you are on a dairy-free diet. Our Thai Pumpkin Soup is made with coconut cream and it is delicious and easy to make!
- A bisque soup is unique in that it adds the cream early in the process. And it has a lot of cream! The cream reduces slowly to make a very thick soup and ends with a smooth consistency. The word “bisque” is a French term referring to “cooked twice” and is best known using seafood and shellfish. Lobster bisque is one such well-known soup. Sometimes, roasted and pureed vegetables are also referred to as bisques. Our Creamy Roasted Red Kuri Bisque is a delicious example.
- A chowder is another French-derived word meaning cauldron. It is also a thick soup similar to a bisque but with one main difference. It is chunky with vegetables, seafood, meat or poultry. The thickening agent can be flour, cornstarch or potatoes. It may or may not include cream. Our recipes for New England Clam Chowder, Wild Alaskan Smoked Salmon Chowder, Corn and Shrimp Chowder are good examples of cream-based chowders. A chowder can also have a tomato broth base instead of a cream base as in a Manhattan Clam Chowder and our Vegetable Chowder with Seared Scallops
SOME OTHER RECIPES WE ARE SURE YOU WILL LOVE:
- Creamy Potato Leek Soup with Chive Blossoms: The delicate flavor of leek is a perfect match for potatoes in this Creamy Potato Leek Soup. Chive blossoms elevate this soup to a beautiful and sophisticated meal and makes a stunning appearance on your table.
- Split Pea and Ham Soup: Homemade Split Pea and Ham Soup is a classic comforting soup, perfect for the cold winter weather. Thick with heart-healthy split peas, chunks of smoky ham and lots of nutritious vegetables.
- Minestrone Soup: A traditional Italian minestrone soup recipe that is full of vegetables and flavor.
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- 1 large head cauliflower, (about 2-1/4 pounds) cut into florets
- 2 tablespoons olive oil
- Sea salt
- Freshly ground black pepper
- 6 strips of lean bacon
- 3 leeks, sliced white and light green parts, reserve 1/2 cup
- 4 cloves garlic, minced
- 5 cups chicken broth-homemade or canned, divided
- 1 tablespoon smoked paprika
- 2 tablespoons thyme leaves
- 1 cup heavy cream
Fried leek rings:
- 1/4 cup vegetable oil
- Reserved bacon bits
To Roast the Cauliflower:
- Preheat the oven to 425°F and spray two baking sheets with non-stick oil. Place the cauliflower florets in a large bowl and drizzle with olive oil. Spread the cauliflower equally on the baking sheets and season with salt and pepper. Transfer to the oven and roast for 20-25 minutes until the florets are tender and the edges lightly caramelized. Remove from the oven and cool slightly.
For the Soup:
- In a Dutch oven or large pot set over medium heat add the bacon and cook until crisp. Remove and drain on a paper towel-lined plate. When cool, cut/chop into bits and reserve.
- Drain off all but 2 tablespoons of the bacon drippings; then add all but 1/2 cup of the leek slices and cook until golden about 2-3 minutes.. Add the garlic and cook just until fragrant.
- Transfer the mixture to a standard blender or a food processor. Add the roasted cauliflower, 3 cups of the chicken broth, paprika and the thyme leaves. Process to a smooth puree, then return to the Dutch oven.
- Stir the remaining chicken broth into the soup, increase the heat to high and bring the soup to a boil then immediately reduce the heat to low and whisk in the cream, taste and adjust seasoning if necessary. Cover the soup pot and simmer for 15 to 20 minutes.
Fried Leek Rings:
- Heat the oil in a small skillet set over medium-high until hot and shimmering. Working in batches add a portion of the reserved leek rings. Be cautious as they may sizzle and sputter.
- Cook until they turn crisp and golden then remove with a fork or tongs and drain on a paper towel lined plate. Continue until all the leek rings are crisp and golden.
- Ladle the soup into bowls, sprinkle with paprika and add reserved bacon bits and crisp leek rings. Enjoy!
- For a large 2+ pound cauliflower you will need to use two baking sheets to keep the florets from crowding. Over crowding the pan will cause the cauliflower to steam rather than roast.
- This roasted cauliflower soup is gluten-free and can also be made vegetarian by eliminating the bacon and substituting a vegetable broth for the chicken broth.
- For a dairy-free soup, substitute coconut cream for a fantastic flavor!
- For a low-fat, tangy version substitute the heavy cream for 1 cup of Greek yogurt.
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- Sweese 109.101 Porcelain Onion Soup Bowls with Handles - 15 Ounce for Soup, Cereal, Stew, Chill, Set of 4, White
- BIA Cordon Bleu 900188WGS1SIOC Serveware Tureen Serving Set, One Size, White
- 365 Everyday Value, Organic Paprika, 1.69 oz
- Swanson Natural Goodness Chicken Broth, 32 oz. Carton
- Pompeian Robust Extra Virgin Olive Oil - 68 Ounce
Amount Per Serving: Calories: 345Total Fat: 33gSaturated Fat: 12gTrans Fat: 1gUnsaturated Fat: 19gCholesterol: 60mgSodium: 1096mgCarbohydrates: 7gFiber: 1gSugar: 3gProtein: 7g
Nutrition information is a guideline only, is calculated automatically by third-party software, and absolute accuracy is not guaranteed.