This French-style creamy cauliflower soup recipe is vegetarian and made with half and half, so it's not heavy. Ready in less than 30 minutes. The brie on top adds a decadent, elegant touch!
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We are going to make an easy, classy, creamy cauliflower soup like the French would. So French, in fact, that we are even going to throw a slab of brie on top. Who else would think that up?
And it's going to be the cauliflower-est cauliflower soup you've ever had. So much cauliflower flavor. What's the secret? Water. No stock.
We'll use the cauliflower cooking water as our broth, and what does that taste like? Cauliflower!
And good news, this soup is completely vegetarian, just like my gazpacho recipe and this refreshing cold borscht.
Jump to:
Ingredients you'll need
- Cauliflower: You want one large head of cauliflower (or two small heads), to equal about two pounds. Look for firm heads without blemishes. If there are any small brown spots, just trim them off.
- Water: Yes, water is a key ingredient! Cooking the cauliflower in water makes the water taste like cauliflower and nothing else. I find that chicken stock can dull the flavor of some vegetable soups, and that using vegetable stock can make it taste like a whole different group of vegetables than the ones that are in your soup. To me, vegetable stock has a distinct sweetness to it, so I use water instead.
- Shallots: We are being very French here so let's use shallots and also because they are milder in flavor and won't overpower the cauliflower.
- Dijon mustard: On with the Frenchness! This gives the soup a bit of tang and umami.
- Thyme and bay leaf: Aromatics to give the soup depth.
- Half and half: Since the cauliflower itself will help thicken the soup and we have a hefty, creamy brie on top, we're keeping it a weensy bit lighter with the half and half.
- Brie: Choose a good brie from France. American brie has a different consistency and will not melt as well. Believe me, I tried it so you don't have to.
- Kosher salt and freshly ground black pepper
How to make creamy cauliflower soup
Follow these step by step instructions for foolproof results!
Recipe adapted from The French Market: More Recipes from a French Kitchen.
Step 1: Bring the brie to room temp while you make the soup
Take the brie out of the fridge and allow it to come to room temperature as you prepare the soup.
Step 2: Chop the shallots and cauliflower
Using a good chef's knife, chop the shallots finely.
Chop the cauliflower into small florets. You want them to be pretty small so that they are all submerged under the water once it's added.
Step 3: Sauté the shallots and make the aromatic soup base
Melt the butter in a large Dutch oven with a lid over medium heat.
Add the shallots and sauté until they are fragrant and translucent, about 5 minutes. Then add the Dijon mustard and stir to combine.
Step 4: Add the cauliflower, water and herbs, and simmer the soup
Add the cauliflower, water, 1 teaspoon of salt, thyme sprigs and bay leaves to the pot. Be careful with the amount of water, you may not need quite as much as I call for in the recipe. You want the cauliflower to be just barely covered. It is going to release more water and shrink as it cooks.
The less water you have, the thicker soup you have. You want a pleasantly thick enough soup to support the slice of brie that is going on top!
Nestle the thyme and bay leaves down into the water, but try to keep the thyme intact, without the leaves going everywhere.
Place a lid on the Dutch oven and bring the mixture to a boil. Reduce heat to medium low and simmer for about 15 minutes, or until the cauliflower pierces easily with a fork. Remove from heat.
Step 5: Blend the soup until creamy and smooth
Remove the thyme and bay leaves. If any stray thyme leaves have gotten loose from the stems, try to get them out, but it's not a big deal. Use an immersion blender or a regular blender to blend the soup until it's creamy smooth. (Use caution when putting hot liquids in a blender!)
If you find the soup is overly thick, you can add a little more water, but remember you still have half and half to add.
Step 6: Stir in half and half and top with brie
Stir in the half and half, and salt to taste. Place the creamy cauliflower soup back over medium heat until it's piping hot.
Place a couple of slices of brie on top of each bowl of soup and season with freshly ground black pepper.
Tips for creamy cauliflower soup
- I love my immersion blender. I have had mine, a Braun, for probably 20 years! I prefer using it as opposed to a regular blender for hot soups, because you can just blend it right in the pot, and you don't have to worry about the venting and exploding that can sometimes happen with hot liquids in blenders. If you do use a regular blender, be sure to do small amounts at a time, and make sure the vent is open on the top so steam can escape.
- You want nestle the thyme and bay leaves down into the water, but try to keep the thyme intact, without the leaves going everywhere. Don't submerge them under the cauliflower because you'll need to remove them before blending.
- This is cauliflower soup is creamy and has some body to it, but it's not super thick. Think a little less than potato soup in terms of thickness.
- To get a thick enough soup to support the delicious slice of creamy brie, use as little water to cook the cauliflower as you can. So it may not be the exact amount I call for here. Start cautiously. You can always add a bit more when blending if you need to.
FAQ
By making it taste as much like cauliflower as possible, and that means using very light aromatic seasonings, and using water as your stock. Cooking the cauliflower in water makes the water taste like cauliflower. Now you have a base that hasn't covered up or lost any of that cauliflower flavor. I find that chicken broth can dull the flavor of some vegetable soups, and that using vegetable broth can make it taste like a whole different group of vegetables than the ones that are in your soup. To me, vegetable stock has a distinct sweetness to it, so I use water instead.
To make this soup nice and thick, blend the cauliflower until it is smooth using as little liquid as possible. The half and half will add some thickness to it, but really it relies on the cauliflower itself for thickening. So don't over do it on the amount of cooking water. You can always add a little more when you're blending if you need it.
Yes, this soup freezes well. Store it in an airtight container in the freezer for up to a month. To reheat, let thaw in the fridge, then bring to a simmer in a saucepan over medium heat.
Variations
- If you want a thicker, even creamier texture, you can add heavy cream instead of the half and half.
- Add a splash of white wine when you sauté the shallots for some added French flair.
- If you can't find shallots, use a small yellow onion.
Serving suggestions
To make it an entire French meal, start with this Romaine Hearts Salad and have Chocolate Pots de Creme for dessert. Soup needs bread to dip into it, so try some Pampushky rolls. A French Manhattan would be the perfect cocktail to accompany this very French soup!
Storage and reheating
- Store creamy cauliflower soup in an airtight container in the refrigerator for up to 4 days.
- Freeze for up to one month.
- To reheat, transfer to a saucepan over medium-low heat. You'll want to reheat gently so you don't scorch the half and half.
Creamy cauliflower soup that's quick, easy, vegetarian, and gluten free!
- Quick prep: Just give the shallots and cauliflower a rough chop.
- You only need a few ingredients.
- We'll simmer the cauliflower in water for the base of the soup, which creates maximum, undiluted cauliflower flavor. (No stock needed!)
- Half and half makes the soup creamy without being heavy.
- Shallots, dijon mustard and thyme impart a fancy French flair. (and of course, there's the brie...)
- Ready in 30 minutes!
More gluten free vegetarian soup recipes
- Tuscan White Bean Soup is a classic. It's light yet satisfying and gets loads of umami from a parmigiano rind simmered in the broth.
- When spring approaches, make Soupe au Pistou to clean out your cupboards and get a taste of spring flavors.
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Recipe
Creamy Cauliflower Soup Recipe
Ingredients
- 32 oz cauliflower florets one large head cauliflower or two small ones
- 4 cups water
- 1 small shallot
- 4 sprigs fresh thyme
- 2 bay leaves
- 2 tablespoon unsalted butter
- 1 teaspoon Dijon mustard
- ¾ cup half and half
- 6 oz brie
- 1 teaspoon kosher salt plus more to taste
Instructions
- Take the brie out of the fridge and allow it to come to room temperature as you prepare the soup.
- Chop the shallots finely. Chop the cauliflower into small florets. You want them to be pretty small so that they are all submerged under the water once it's added.
- Melt the butter in a large Dutch oven with a lid over medium heat. Add the shallots and sauté until they are fragrant and translucent, about 5 minutes. Then add the Dijon mustard and stir to combine.
- Add the cauliflower, water, 1 teaspoon of salt, thyme sprigs and bay leaves to the pot. Don't submerge the thyme and bay leaves under the cauliflower because you'll need to remove them before blending. Be careful with the amount of water, you may not need quite as much as I call for in the recipe. You want the cauliflower to be just barely covered. It is going to release more water and shrink as it cooks.
- Place a lid on the Dutch oven and bring the mixture to a boil. Turn the heat down to medium low and simmer for about 15 minutes, or until the cauliflower pierces easily with a fork. Remove from heat.
- Remove the thyme and bay leaves. If any stray thyme leaves have gotten loose from the stems, try to get them out, but it's not a big deal. Use an immersion blender or a regular blender to blend the soup until it's creamy smooth.
- Stir in the half and half, and salt to taste. Place the creamy cauliflower soup back over medium heat until it's piping hot. Place a couple of slices of brie on top of each bowl of soup and season with freshly ground black pepper.
Notes
- Recipe adapted from The French Market: More Recipes from a French Kitchen
- I love my immersion blender. I have had mine, a Braun, for probably 20 years! I prefer using it as opposed to a regular blender for hot soups, because you can just blend it right in the pot, and you don't have to worry about the venting and exploding that can sometimes happen with hot liquids in blenders. If you do use a regular blender, be sure to do small amounts at a time, and make sure the vent is open on the top so steam can escape.
- You want nestle the thyme and bay leaves down into the water, but try to keep the thyme intact, without the leaves going everywhere. Don't submerge them under the cauliflower because you'll need to remove them before blending.
- This is soup has some body to it, but it's not super thick. Think a little less than potato soup in terms of thickness.
- To get a thick enough soup to support the delicious slice of brie, use as little water to cook the cauliflower as you can. So it may not be the exact amount I call for here. Start cautiously. You can always add a bit more when blending if you need to.
- Be sure to check out the post above for info about choosing ingredients and FAQs.
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