Celeriac Soup With Hazelnut Crumble (Printable)

Silky roasted celeriac blended with aromatic vegetables, finished with buttery toasted hazelnuts and fresh parsley for a comforting European-inspired bowl.

# Ingredient list:

→ 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

05 - 3.75 cups vegetable broth
06 - 2 tablespoons olive oil
07 - 3.4 fluid ounces heavy cream, optional or plant-based cream for vegan

→ Seasonings

08 - 1 teaspoon sea salt, or to taste
09 - 0.5 teaspoon freshly ground black pepper
10 - 0.25 teaspoon ground nutmeg

→ Hazelnut Crumble

11 - 2.1 ounces whole hazelnuts
12 - 1 tablespoon unsalted butter or olive oil for vegan
13 - 1 tablespoon fresh parsley, finely chopped
14 - Pinch of sea salt

# Cooking steps:

01 - Preheat oven to 400°F. Spread diced celeriac on a baking sheet, drizzle with 1 tablespoon olive oil, toss to coat evenly, and roast for 25 to 30 minutes, stirring once halfway through, until golden and tender.
02 - While celeriac roasts, heat 1 tablespoon olive oil in a large pot over medium heat. Add onion and garlic, sauté for 3 to 4 minutes until softened and fragrant.
03 - Add roasted celeriac and diced potato to the pot with sautéed aromatics. Pour in vegetable broth and bring to a boil, then reduce heat and simmer for 15 to 20 minutes until vegetables are completely tender.
04 - 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 parsley and a pinch of salt, then remove from heat.
05 - Once soup vegetables are tender, use an immersion blender to purée until completely smooth. Alternatively, carefully transfer soup in batches to a stand blender and blend until velvety.
06 - Stir cream if using, nutmeg, salt, and pepper into the blended soup. Reheat gently over low heat if needed until steaming.
07 - Ladle soup into bowls and sprinkle generously with warm hazelnut crumble. Serve immediately while hot.

# Expert advice:

01 -
  • It feels fancy and restaurant-worthy, but honestly takes less than an hour and comes together in one pot.
  • The hazelnut crumble adds this unexpected crunch that makes you actually stop and notice each spoonful.
  • One bowl of this and you'll understand why celeriac deserves way more attention in home cooking.
02 -
  • Roasting celeriac makes all the difference—I learned this after years of thinking I just didn't like celeriac soup, when really I'd only had it boiled into submission.
  • Don't skip the toasting of hazelnuts even though it feels like an extra step; those two minutes of attention create the whole character of this dish.
03 -
  • If your soup seems too thick after blending, warm a bit of extra broth and stir it in gradually rather than adding cream—you maintain that delicate flavor balance.
  • Toast your hazelnuts in a dry skillet first for 2 minutes before adding butter if you want even deeper, more concentrated hazelnut flavor.
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