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Potage Parmentier (Classic French Leek and Potato Soup)

  • Jan 9
  • 1 min read

Updated: Feb 18


Creamy potato and leek soup, named after Antoine-Augustin Parmentier.
Creamy potato and leek soup, named after Antoine-Augustin Parmentier.

Ingredients (Serves 4–6)


  • 3 large leeks, white and light green parts only, cleaned and sliced

  • 3 medium potatoes, peeled and diced

  • 1 onion, chopped

  • 2 tbsp unsalted butter

  • 1 liter vegetable or chicken broth

  • 150 ml heavy cream (optional)

  • Salt and freshly ground black pepper

  • Fresh chives or parsley, chopped, for garnish


Preparation


  1. Sauté vegetables:

    • Melt butter in a large pot over medium heat.

    • Add leeks and onion, cooking gently until softened (5–7 minutes).

  2. Add potatoes and broth:

    • Add diced potatoes and pour in broth.

    • Bring to a boil, then reduce heat and simmer for 20–25 minutes until potatoes are tender.

  3. Blend the soup:

    • Remove from heat and use an immersion blender (or transfer to a blender) to puree until smooth.

  4. Finish with cream:

    • Stir in heavy cream if desired. Adjust seasoning with salt and pepper.

  5. Serve:

    • Ladle into bowls and garnish with chopped chives or parsley.

    • Serve hot with crusty bread.


Serving Suggestions


  • Serve as a starter or light meal.

  • Pair with fresh French baguette and a glass of white wine.


Cooking Tips


  • Use only the tender parts of leeks for a delicate flavor.

  • For extra smooth soup, strain through a fine mesh sieve after blending.

  • Adjust cream amount for lighter or richer texture.

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