Jacques' Watercress Soup


1 large bunch watercress
2 tablespoons unsalted butter, divided
1/2 cup coarsely chopped onion
1 cup roughly chopped leek
2 medium-size potatoes, peeled and thickly sliced
2 cups chicken stock
1/3 teaspoon (approx.) salt (depending on the seasoning of the stock)
Generous pinch coarsely ground white pepper
Pinch thyme leaves
1/2 cup milk
1/3 cup heavy cream


Pick over watercress, discarding any yellowed leaves. Chop coarsely. You should have 3-4 cups greens after chopping.

In a large saucepan over medium heat, melt 1 tablespoon butter. Add onion, leek, and watercress. Cook, stirring often, until all ingredients become soft, about 5 minutes.

Add potatoes, stock, salt, pepper, and thyme. Increase heat and bring to a rolling boil. Reduce heat, cover, and let simmer 1 hour.

Using a food mill or immersion blender, purée the soup. Return purée to pan.

Add milk and cream. Bring to a boil, stirring slowly. Adjust seasoning with salt and pepper if needed.

Just before serving, stir in remaining 1 tablespoon butter, bit by bit, stirring well after each addition until butter is well incorporated into soup. Don’t let it boil. If soup is too thick for your taste, adjust with milk or water. Serve hot or cold.


3 cups

Preparation Time

30 Minutes

Total Time

90 Minutes

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