Celeriac Soup With Hazelnut Crumble

Featured in: Herb-Sprigged Comfort Plates

This elegant soup transforms humble celeriac into something extraordinary through roasting, which deepens the earthy, slightly sweet flavor profile. The vegetables are first roasted until golden, then simmered until meltingly tender before being pureed into a luxuriously smooth consistency. The crowning touch comes from freshly toasted hazelnuts, lightly buttered and seasoned, which create a delightful contrast against the creamy base. A hint of nutmeg enhances the natural sweetness, while optional cream adds extra richness. Ready in just over an hour, this sophisticated yet simple dish is perfect for chilly evenings and elegant entertaining alike.

Updated on Tue, 27 Jan 2026 20:09:20 GMT
Creamy celeriac soup with hazelnut crumble served hot in a rustic white bowl. Save
Creamy celeriac soup with hazelnut crumble served hot in a rustic white bowl. | wheatsprig.com

Experience the ultimate comfort with this velvety Celeriac Soup with Hazelnut Crumble. This dish transforms the humble, earthy celeriac root into a sophisticated, silky puree. By roasting the celeriac first, we unlock a deep, nutty sweetness that harmonizes perfectly with the aromatic touch of nutmeg and rich cream. It is a warm, elegant meal perfect for chilly evenings.

Creamy celeriac soup with hazelnut crumble served hot in a rustic white bowl. Save
Creamy celeriac soup with hazelnut crumble served hot in a rustic white bowl. | wheatsprig.com

The star of the show is the hazelnut crumble, which adds a gourmet flair and a delightful crunch to every bite. Fresh parsley and a hint of sea salt in the topping brighten the earthy tones of the soup, creating a balanced and flavorful profile that will impress your guests or provide a restorative solo dinner.

Ingredients

  • Vegetables: 1 large celeriac (about 700 g), peeled and diced; 1 medium onion, diced; 2 cloves garlic, minced; 1 medium potato (about 150 g), peeled and diced.
  • Liquids: 900 ml vegetable broth; 2 tbsp olive oil; 100 ml heavy cream (optional, or use plant-based cream for vegan).
  • Seasonings: 1 tsp sea salt, or to taste; 1/2 tsp freshly ground black pepper; 1/4 tsp ground nutmeg.
  • Hazelnut Crumble: 60 g whole hazelnuts; 1 tbsp unsalted butter (or olive oil for vegan); 1 tbsp fresh parsley, finely chopped; pinch of sea salt.
Product image
Blend smoothies, sauces, dips, and prep ingredients quickly for fast meals and everyday cooking.
Check price on Amazon

Instructions

Step 1: Roast the Celeriac
Preheat the oven to 200°C (400°F). Spread the diced celeriac on a baking sheet, drizzle with 1 tbsp olive oil, and toss to coat. Roast for 25–30 minutes, turning once, until golden and tender.
Step 2: Sauté Aromatics
Meanwhile, heat 1 tbsp olive oil in a large pot over medium heat. Add the onion and garlic, sauté for 3–4 minutes until softened.
Step 3: Simmer the Soup
Add the roasted celeriac and diced potato to the pot. Pour in the vegetable broth and bring to a boil. Reduce heat and simmer for 15–20 minutes, until the vegetables are very soft.
Step 4: Prepare the Crumble
While the soup simmers, roughly chop the hazelnuts. Heat the butter in a small skillet over medium heat, add the hazelnuts, and toast for 2–3 minutes until golden and fragrant. Stir in the parsley and a pinch of salt, then remove from heat.
Step 5: Blend
Once the soup vegetables are tender, use an immersion blender to puree until completely smooth. Alternatively, transfer to a stand blender in batches.
Step 6: Season and Finish
Stir in the cream (if using), nutmeg, salt, and pepper. Reheat gently if needed.
Step 7: Serve
Ladle the soup into bowls and sprinkle generously with the prepared hazelnut crumble. Serve hot.

Zusatztipps für die Zubereitung

To ensure the smoothest consistency, make sure the potato and roasted celeriac are completely soft before blending. If the soup is too thick, you can adjust the consistency by adding a little extra vegetable broth or a splash of water.

Varianten und Anpassungen

For a vegan version, simply replace the heavy cream with a plant-based cream or coconut milk, and use olive oil instead of butter for the hazelnut crumble. You can also experiment with different nuts, such as walnuts or pecans, for the topping.

Serviervorschläge

This soup pairs beautifully with thick slices of crusty bread for dipping. To elevate the presentation, add a drizzle of hazelnut oil or sprinkle some extra fresh herbs on top. A crisp white wine like Sauvignon Blanc complements the earthy flavors perfectly.

Save
| wheatsprig.com

With its creamy base and satisfying crunch, this celeriac soup is a testament to how simple ingredients can create a truly luxurious meal. Whether as a starter or a main course, it brings a touch of European elegance to your table.

Product image
Melt chocolate or cheese smoothly for dipping fruits, pretzels, and snacks during desserts and parties.
Check price on Amazon

Recipe Q&A

Can I make this soup ahead of time?

Absolutely. The base keeps beautifully in the refrigerator for up to 3 days. Store the hazelnut crumble separately in an airtight container and add just before serving to maintain its crunch. Reheat gently over low heat, adding a splash of liquid if needed.

What can I substitute for celeriac?

While celeriac's unique flavor is irreplaceable, you can use equal parts celery root and rutabaga, or try parsnip for a sweeter variation. The texture will remain similarly velvety after roasting and blending.

Is freezing possible?

Yes, freeze the cooled soup base in airtight containers for up to 3 months. Thaw overnight in the refrigerator and reheat slowly. The hazelnut crumble is best made fresh, though toasted nuts can be frozen separately.

How do I achieve the smoothest texture?

Roasting the celeriac until completely tender is key. Use a high-speed blender and puree in batches if necessary, running for 1-2 minutes per batch. For extra refinement, pass through a fine-mesh sieve before adding cream.

Can I use other nuts for the crumble?

Certainly. Toasted walnuts, pecans, or even almonds work wonderfully. Adjust toasting times as needed since different nuts brown at different rates. Each brings its own character to the dish.

Is this suitable for special diets?

Naturally gluten-free and easily made vegan by using plant-based cream and olive oil instead of butter. The dish is already vegetarian and fits perfectly into dairy-free and nut-conscious eating with simple substitutions.

Celeriac Soup With Hazelnut Crumble

Roasted celeriac blended into a silky smooth bowl, finished with buttery toasted hazelnuts and fresh parsley for added crunch.

Prep Time
15 min
Time to Cook
45 min
Overall Time
60 min
Recipe By Riley Scott


Skill Level Easy

Cuisine European

Makes 4 Number of Servings

Diet Details Meat-Free, No Gluten

What You’ll Need

Vegetables

01 1 large celeriac (approximately 1.5 lbs), peeled and diced
02 1 medium onion, diced
03 2 cloves garlic, minced
04 1 medium potato (approximately 5.3 oz), peeled and diced

Liquids

01 3.75 cups vegetable broth
02 2 tablespoons olive oil
03 3.4 fl oz heavy cream, optional or plant-based cream alternative for vegan

Seasonings

01 1 teaspoon sea salt, or to taste
02 0.5 teaspoon black pepper, freshly ground
03 0.25 teaspoon ground nutmeg

Hazelnut Crumble

01 2.1 oz whole hazelnuts
02 1 tablespoon unsalted butter or olive oil for vegan
03 1 tablespoon fresh parsley, finely chopped
04 Pinch of sea salt

Method

Step 01

Roast celeriac: Preheat oven to 400°F. Spread diced celeriac on a baking sheet, drizzle with 1 tablespoon olive oil, and toss to coat evenly. Roast for 25 to 30 minutes, stirring halfway through, until golden and tender.

Step 02

Sauté aromatics: Heat 1 tablespoon olive oil in a large pot over medium heat. Add diced onion and minced garlic, sauté for 3 to 4 minutes until softened and fragrant.

Step 03

Build soup base: Add roasted celeriac and diced potato to the pot. Pour in vegetable broth and bring to a boil. Reduce heat to low and simmer for 15 to 20 minutes until vegetables are very tender.

Step 04

Toast hazelnut crumble: While soup simmers, roughly chop hazelnuts. Heat butter in a small skillet over medium heat, add hazelnuts, and toast for 2 to 3 minutes until golden and fragrant. Stir in fresh parsley and a pinch of sea salt. Remove from heat.

Step 05

Puree soup: Once soup vegetables are completely tender, use an immersion blender to puree until silky smooth. Alternatively, transfer soup in batches to a stand blender and blend until smooth.

Step 06

Finish and season: Stir in cream if using, ground nutmeg, sea salt, and black pepper. Reheat gently over low heat until desired temperature is reached.

Step 07

Serve: Ladle soup into bowls and sprinkle generously with hazelnut crumble topping. Serve immediately while hot.

What You’ll Need

  • Baking sheet
  • Large pot
  • Immersion blender or stand blender
  • Small skillet
  • Chef's knife

Allergy Info

Review every ingredient for allergens and speak with a healthcare provider if you’re unsure.
  • Contains tree nuts (hazelnuts)
  • Contains dairy (heavy cream and butter)

Nutritional info (per portion)

This data is just a guideline and shouldn’t replace medical input.
  • Energy (kcal): 285
  • Fat Content: 19 g
  • Carbohydrates: 22 g
  • Proteins: 5 g