Mary Berry Celeriac & Watercress Soup is a creamy, flavorful soup that combines the subtle earthiness of celeriac with the peppery freshness of watercress. This elegant and nutritious dish is perfect for a light lunch, a sophisticated starter, or a warming meal during colder months.
What is Mary Berry Celeriac & Watercress Soup?
This soup blends velvety celeriac with the bold, peppery notes of fresh watercress. The celeriac provides a smooth, creamy texture, while the watercress adds a bright and slightly spicy finish. The result is a balanced, nutrient-rich soup that’s both comforting and refreshing.

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- Jamie Oliver Fish Soup
Why You Should Try This Recipe
- Creamy yet light: The blended celeriac gives a luxurious texture without needing much cream.
- Rich in nutrients: Packed with vitamins and antioxidants from watercress and celeriac.
- Simple and elegant: A gourmet-style soup that’s easy to prepare.
- Perfect for any season: Enjoy it warm in winter or chilled in summer.
- Versatile: Works as an appetizer, lunch, or light dinner.
Ingredients Needed to Make Mary Berry Celeriac & Watercress Soup
- Celeriac (1 medium, about 500g, peeled and chopped) – The key ingredient, providing a smooth texture.
- Watercress (2 handfuls, plus extra for garnish) – Adds a fresh, peppery flavor.
- Onion (1, finely chopped) – Adds sweetness and depth.
- Garlic cloves (2, minced) – Enhances the soup’s aroma.
- Leek (1, white part only, finely chopped) – Brings a mild, onion-like sweetness.
- Butter (2 tbsp) or olive oil – For sautéing the vegetables.
- Vegetable or chicken stock (1 liter) – Forms the flavorful base of the soup.
- Double cream (100ml, optional) – For extra richness.
- Salt and black pepper (to taste) – Balances and enhances the flavors.
- Lemon juice (1 tbsp, optional) – Brightens the soup.
Equipment Needed
- Large pot or saucepan – For cooking the soup.
- Wooden spoon – For stirring.
- Knife and cutting board – For chopping vegetables.
- Blender or immersion blender – For achieving a smooth consistency.
- Fine sieve (optional) – For a silkier texture.
Instructions to Make Mary Berry Celeriac & Watercress Soup
- Sauté the vegetables: Heat the butter or olive oil in a large pot over medium heat. Add the chopped onion, leek, and garlic, and cook for 5 minutes until softened.
- Add the celeriac: Stir in the chopped celeriac and cook for another 5 minutes, allowing the flavors to meld.
- Pour in the stock: Add the vegetable or chicken stock, season with salt and black pepper, and bring to a gentle simmer. Cover and let cook for 20 minutes, or until the celeriac is tender.
- Blend the soup: Remove the pot from heat and stir in the watercress. Let it wilt for 1-2 minutes. Use an immersion blender to blend the soup until smooth, or transfer it in batches to a blender. If you prefer an extra silky consistency, pass the soup through a fine sieve.
- Add cream (optional) and adjust seasoning: Stir in the double cream for extra richness, and adjust seasoning as needed. Add a splash of lemon juice for brightness.
- Serve: Ladle the soup into bowls, garnish with fresh watercress leaves, and serve with crusty bread or croutons.

What Goes Well With Mary Berry Celeriac & Watercress Soup?
- Crusty bread or sourdough: Ideal for dipping.
- Cheese toasties: A great side for a comforting meal.
- Toasted seeds or nuts: Adds crunch and extra nutrients.
- A glass of white wine: Complements the flavors beautifully.
- Roasted root vegetables: Pairs well as a side dish.
Expert Tips for Making the Best Mary Berry Celeriac & Watercress Soup
- Peel celeriac thoroughly: The outer skin can be tough and fibrous.
- Use fresh watercress: This ensures a bright, peppery taste.
- Blend well: A high-speed blender gives the creamiest texture.
- Don’t overcook the watercress: Adding it at the end preserves its vibrant color and flavor.
- Adjust consistency: Add more stock if you prefer a thinner soup.
Easy Variations of Mary Berry Celeriac & Watercress Soup
- Dairy-free version: Omit the cream or use coconut milk.
- Extra spice: Add a pinch of cayenne pepper or chili flakes.
- Protein boost: Stir in cooked white beans before blending.
- Chunky style: Blend only half the soup for added texture.
- Nutty twist: Top with toasted almonds or pine nuts.
Best Practices to Store Mary Berry Celeriac & Watercress Soup
- Refrigeration: Store in an airtight container in the fridge for up to 3 days.
- Freezing: Freeze in portioned containers for up to 3 months. Thaw overnight before reheating.
- Separation fix: Stir or blend again after storage for the best texture.
Best Practices to Reheat Mary Berry Celeriac & Watercress Soup
- Stovetop method: Warm gently over low heat, stirring occasionally.
- Microwave method: Heat in short intervals, stirring between each.
- Avoid boiling: Overheating can affect the soup’s color and texture.
FAQs
Can I use a different leafy green instead of watercress?
Yes, you can substitute watercress with spinach or arugula for a similar peppery flavor.
How can I make this soup thicker?
Blend in a small boiled potato or reduce the amount of stock slightly for a thicker consistency.
Can I serve this soup chilled?
Yes, this soup can be served chilled in warmer months for a refreshing alternative.
What’s the best way to blend this soup?
An immersion blender is the easiest method, but for an ultra-smooth texture, use a high-speed blender and strain through a sieve.
Final Words
Mary Berry Celeriac & Watercress Soup is a velvety, elegant, and flavorful dish that showcases the delicate balance of earthy celeriac and peppery watercress.
Pair it with crusty bread, and enjoy the comforting warmth of this classic recipe.
Print
Mary Berry Celeriac & Watercress Soup Recipe
- Prep Time: 10
- Cook Time: 25
- Total Time: 35 minutes
- Yield: 4
- Category: Soup
- Method: Simmering
- Cuisine: British
Description
This soup blends velvety celeriac with the bold, peppery notes of fresh watercress. The celeriac provides a smooth, creamy texture, while the watercress adds a bright and slightly spicy finish. The result is a balanced, nutrient-rich soup that’s both comforting and refreshing.
Ingredients
- Celeriac (1 medium, about 500g, peeled and chopped) – The key ingredient, providing a smooth texture.
- Watercress (2 handfuls, plus extra for garnish) – Adds a fresh, peppery flavor.
- Onion (1, finely chopped) – Adds sweetness and depth.
- Garlic cloves (2, minced) – Enhances the soup’s aroma.
- Leek (1, white part only, finely chopped) – Brings a mild, onion-like sweetness.
- Butter (2 tbsp) or olive oil – For sautéing the vegetables.
- Vegetable or chicken stock (1 liter) – Forms the flavorful base of the soup.
- Double cream (100ml, optional) – For extra richness.
- Salt and black pepper (to taste) – Balances and enhances the flavors.
- Lemon juice (1 tbsp, optional) – Brightens the soup.
Instructions
-
Sauté the vegetables: Heat the butter or olive oil in a large pot over medium heat. Add the chopped onion, leek, and garlic, and cook for 5 minutes until softened.
-
Add the celeriac: Stir in the chopped celeriac and cook for another 5 minutes, allowing the flavors to meld.
-
Pour in the stock: Add the vegetable or chicken stock, season with salt and black pepper, and bring to a gentle simmer. Cover and let cook for 20 minutes, or until the celeriac is tender.
-
Blend the soup: Remove the pot from heat and stir in the watercress. Let it wilt for 1-2 minutes. Use an immersion blender to blend the soup until smooth, or transfer it in batches to a blender. If you prefer an extra silky consistency, pass the soup through a fine sieve.
-
Add cream (optional) and adjust seasoning: Stir in the double cream for extra richness, and adjust seasoning as needed. Add a splash of lemon juice for brightness.
-
Serve: Ladle the soup into bowls, garnish with fresh watercress leaves, and serve with crusty bread or croutons.