The perfect winter warmer that is sure to please everyone, potato and leek soup is a French classic. It’s one of the first dishes I learned to make as an apprentice chef many years ago.
Leeks tend to trap dirt between their layers, so wash them thoroughly. Start by cutting off and discarding the root ends and thick dark green parts. Cut the leeks in half lengthwise and rinse each half under cold water, pulling apart the layers to remove any sand that’s hiding inside.
What you need
3 tablespoons unsalted butter
4 large leeks, white and light green parts only, roughly chopped (about 5 cups)
3 cloves garlic, peeled and smashed
1kg (2.2 lbs) Royal Blue potatoes, peeled and roughly chopped into ½-inch pieces
7 cups chicken or vegetable stock
2 bay leaves
3 sprigs fresh thyme
1 teaspoon salt
¼ teaspoon ground black pepper
1 cup double cream
Chives, finely chopped, for serving
What to do
Melt the butter over medium heat in a large soup pot. Add the leeks and garlic and cook, stirring regularly, until soft and wilted, about 10 minutes. Adjust the heat as needed to prevent browning.
Add the potatoes, stock, bay leaves, thyme, salt and pepper to the pot and bring to a boil. Cover, reduce heat to low, and simmer for 15 minutes, or until the potatoes are fork-tender.
Fish out the thyme sprig and bay leaves, then purée the soup with a handheld immersion blender until smooth. (Alternatively, blend in batches using a standard blender; see note.) Add the double cream and bring to a simmer. Taste and adjust seasoning with salt and pepper. If the soup is too thin, simmer until thickened. If it's too thick, add water or stock to thin it out. Garnish with fresh chives, if desired.
Note: If using a standard blender to purée the soup: be sure not to fill the jar more than halfway; leave the hole in the lid open and cover loosely with a dishtowel to allow the heat to escape; and pour blended soup into a clean pot.
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