Celeriac Soup Hazelnut Crumble (Printable Version)

Velvety roasted celeriac purée with crispy hazelnut butter topping for texture contrast.

# Ingredient List:

→ Vegetables

01 - 1 large celeriac (about 1.5 pounds), peeled and cubed
02 - 1 medium onion, chopped
03 - 2 cloves garlic, minced
04 - 1 medium potato (about 5 ounces), peeled and diced

→ Liquids

05 - 3 3/4 cups vegetable broth
06 - 2 tablespoons olive oil

→ Dairy

07 - 1/3 cup heavy cream or plant-based alternative

→ Spices & Seasoning

08 - 1/2 teaspoon ground white pepper
09 - Salt, to taste

→ Hazelnut Crumble

10 - 2 1/2 ounces whole hazelnuts, roughly chopped
11 - 1 tablespoon unsalted butter or plant-based margarine
12 - 1/4 teaspoon sea salt
13 - 1 tablespoon fresh parsley, finely chopped

# Directions:

01 - Preheat the oven to 390°F.
02 - Toss celeriac cubes with 1 tablespoon olive oil, salt, and pepper. Spread on a baking tray and roast for 25–30 minutes, turning halfway, until soft and golden.
03 - While celeriac roasts, heat 1 tablespoon olive oil in a large pot over medium heat. Sauté onion for 4 minutes until translucent. Add garlic and potato; cook for another 2 minutes.
04 - Transfer roasted celeriac to the pot. Add vegetable broth and bring to a gentle boil. Simmer for 15–20 minutes until vegetables are very soft.
05 - Meanwhile, toast hazelnuts in a dry skillet over medium heat for 3–4 minutes until fragrant. Add butter and sea salt, stirring until nuts are golden and coated. Remove from heat and cool slightly.
06 - Use an immersion blender (or work in batches with a countertop blender) to purée the soup until silky smooth. Stir in cream (if using). Taste and adjust salt and pepper.
07 - Ladle soup into bowls. Top generously with hazelnut crumble and chopped parsley.

# Expert Tips:

01 -
  • The roasted celeriac develops this incredible sweetness that perfectly balances its natural earthiness
  • That hazelnut crumble creates such satisfying contrast against the silky smooth soup
  • It comes together in about an hour but tastes like something that simmered all day
02 -
  • I once skipped roasting the celeriac to save time and the soup was fine, just noticeably less complex and sweet
  • The hazelnuts can burn faster than you expect, so stand right there and keep them moving once they start smelling toasty
03 -
  • If your blender isnt powerful enough to get it completely smooth, pass it through a fine mesh sieve
  • Toasting the hazelnuts just until fragrant rather than deeply browned keeps them from becoming bitter
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