French Celery Soup Recipe
This French celery soup recipe is built around celeriac — a humble, often overlooked vegetable that deserves far more attention than it gets here in the U.S. It’s flavor is gentle, savory, and deeply satisfying, bringing a rich depth to the pot without overpowering the other ingredients.
If you’re interested in bringing flavors from other cultures into your winter kitchen, you may also enjoy my Polish red cabbage soup, traditional Italian zucchini soup, and Tex-Mex chili con carne.
Let’s talk about this recipe
One of my favorite things to do in the kitchen is work with ingredients I’ve never cooked with before, and this recipe scratched that itch — it was my first time cooking with celeriac. This vegetable has been used in European kitchens for generations, especially in French cooking, and it will definitely be making repeat appearances in my own kitchen now that I’ve befriended it.
When it’s cooked properly, celeriac brings a soft celery-like flavor, with an earthy depth, to every dish it touches. That flavor pairs especially well with both cheesy pepper jack crackers and crunchy roasted garlic crackers. And honestly, who doesn’t want a few crackers with their soup?!
What makes this recipe so good?
- Celeriac as the base gives the soup natural body and depth, without relying on starches or heavy ingredients to thicken it.
- Intentional ingredient balance keeps the celeriac front and center without letting it overpower the rest of the soup.
- Gentle cooking method allows the vegetables to soften naturally and develop flavor without browning or bitterness.
- Apples add quiet balance, and a subtle sweetness, that complements the savory base perfectly.
- Simple seasoning approach supports the vegetables, rather than masking them with heavy spices.
Ingredients you’ll need
- Celeriac: This vegetable can look intimidating, but it’s a pleasure to work with once you get to know it. Pick a firm, heavy root with no soft spots or damp areas. When prepping, don’t be shy about peeling — removing all of the thick, knobby outer layer ensures the soup blends smoothly and tastes fresh and clean instead of fibrous.
- Sweet apples: The apple’s job here is to quietly round out the celeriac, not to announce itself. Choose one with mild sweetness, and clean flavor, so it softens into the background and keeps the soup balanced rather than fruity.
See recipe card below for full information on ingredients and quantities.
Make it your own
- Swap scallions for dill if you prefer a mild onion flavor, instead of a fresh herbal note.
- Use all celery root, and skip the apples, if you want the soup to lean more savory and less gently sweet.
- Add a small amount of leek, in place of onion, to introduce a gentler, more traditional French-style base flavor.
- Finish with cream, stirred fully into the pot, rather than swirled on top if you prefer a more uniform, softly rounded texture.
Would you like to save this post for later?
We'll email it to you, so you can come back to it whenever you like!
How to make French celery soup
Step 1: Sauté the celery, onions, and apples in olive oil until they’re semi-soft, but not browned. This gentle cooking builds flavor without caramelizing the vegetables, which keeps the soup clean and balanced.
Step 2: Add the celeriac, bay leaf, thyme, salt, pepper, and vegetable broth. Simmer until the celeriac is fully tender and easy to pierce with a knife.
Step 3: Remove the bay leaves, then blend the soup using an immersion blender until you reach your preferred consistency.
Step 4: To finish, swirl heavy cream and a drizzle of olive oil over each bowl, then sprinkle with freshly chopped dill.
Recipe FAQs
Celeriac is a variety of celery grown for its root, not its stalks, and it tastes earthier and more savory than celery once cooked.
Celeriac has a mild celery flavor with earthy undertones, becoming mellow and slightly sweet when cooked.
Absolutely. This recipe is a very approachable introduction to cooking with celeriac.
It should be smooth and spoonable, not heavy or starchy.
Yes. The flavor develops nicely as it rests, making it a good option for advance preparation.
Serving ideas
In France, a soup like this is often served as a simple first course, brought to the table on its own without bread or accompaniments. It’s meant to ease you into the meal — warm, savory, and balanced — without filling you up or competing with what comes next.
When enjoyed as a light meal rather than a starter, pairing it with a little something on the side makes sense. A slice of easy shaggy dough bread or rosemary parmesan artisan loaf turns it into a satisfying lunch, while everything bagel seasoning crackers or simple butter cracker rounds add crunch and contrast for a more casual bowl.
Diane Gail’s tips for success
- Prep carefully: Removing all fibrous outer skin from the celeriac ensures a smooth texture and clean flavor.
- Cook gently: Avoid browning the vegetables so the flavor stays clean and balanced.
- Simmer patiently: Allow the celeriac to soften completely so blending produces a cohesive, velvety soup.
- Blend thoughtfully: Stop blending once smooth — over-blending can dull the flavor.
- Finish lightly: A restrained swirl of cream, a light drizzle of olive oil, and just a dusting of fresh dill enhances the soup without overwhelming it.
Find more old-fashioned soup recipes to make in your kitchen during the colder months in my soup roundup post.
French Celery Soup Recipe
Ingredients
- 2 tablespoons olive oil extra virgin
- 3 stalks celery chopped
- 1 large yellow onion chopped
- 2 sweet apples peeled, cored, and cubed
- 16 oz celeriac peeled, and cubed
- 2 bay leaves
- 1/2 tablespoon dried thyme
- 1/4 teaspoon salt
- 1/4 teaspoon ground black pepper
- 4 cups vegetable broth
- heavy cream optional, for garnish
- chopped fresh dill optional, for garnish
Instructions
- Soften the vegetables: Heat olive oil in a large pot and cook the celery, onion, and apples until semi-soft, but not browned.
- Add remaining ingredients: Stir in the celeriac, bay leaf, thyme, salt, pepper, and vegetable broth to build the soup base.
- Simmer to tender: Cook gently until the celeriac is fully tender and easily pierced with a knife.
- Remove bay leaf: Take out the bay leaf before blending so it doesn’t get caught in the blade.
- Blend until smooth: Use an immersion blender to blend the soup until smooth and cohesive.
- Finish and serve: Serve with a light swirl of heavy cream, a drizzle of olive oil, and chopped fresh dill.
Notes
- Peel the celeriac generously: Removing all of the thick outer skin prevents fibrous texture and keeps the soup tasting clean once blended.
- Keep the sauté gentle: Avoid browning the vegetables so the flavor stays mild and balanced rather than sharp or bitter.
- Simmer patiently: Fully softened celeriac blends smoothly and gives the soup its natural body without needing thickeners.
- Blend with intention: Blend only until the soup is smooth and cohesive so the texture stays clean and not overworked.
- Refresh the finish when reheating: Warm leftovers gently, then add a small drizzle of olive oil and fresh dill when serving.
This soup won my heart right away. The celeriac brings so much depth and character to the pot, and the humble, simplicity of the other ingredients let it shine. If you’ve never cooked with celery root before, this is a great place to start.
~ Diane Gail