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Jamie Oliver Leeks in Cheese Sauce Recipe

Leeks in Cheese Sauce recipe
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Jamie Oliver Leeks in Cheese Sauce is a classic British side dish where tender leeks are gently baked in a homemade cheese sauce made from butter, flour, milk, and a generous helping of mature cheddar. The leeks are softened first, either by boiling or sautéing, then nestled into the sauce and baked until bubbling and golden. It’s a cozy, crowd-pleasing dish that elevates any meal.

Ingredients

  • Leeks – 3 large (trimmed, cleaned, and sliced lengthwise or into chunks)

  • Butter – 40g (about 3 tablespoons)

  • Plain flour – 2 tablespoons

  • Milk – 400ml (1¾ cups)

  • Mature cheddar cheese – 100g, grated

  • Dijon mustard – 1 teaspoon (optional, but adds flavor)

  • Salt and black pepper – to taste

  • Fresh thyme or parsley – for garnish (optional)

Instructions

Step 1: Prep and Cook the Leeks

  • Trim and wash the leeks well to remove any dirt between the layers.

  • Slice them lengthwise or into thick rounds.

  • Steam or boil the leeks for 5–7 minutes until just tender. Drain and set aside.

Step 2: Make the Cheese Sauce

  • Melt the butter in a saucepan over medium heat.

  • Stir in the flour and cook for 1–2 minutes, whisking to form a roux.

  • Gradually add the milk, whisking constantly to avoid lumps.

  • Cook until the sauce thickens and coats the back of a spoon.

  • Add the grated cheese and mustard (if using), and stir until melted and smooth.

  • Season with salt and pepper to taste.

Step 3: Combine and Bake

  • Preheat your oven to 200°C (180°C fan) / 400°F.

  • Arrange the leeks in a baking dish and pour the cheese sauce evenly over the top.

  • Optional: Sprinkle extra cheese or breadcrumbs on top for a golden crust.

  • Bake for 20 minutes, or until bubbling and lightly browned on top.

Step 4: Garnish and Serve

  • Garnish with chopped fresh parsley or thyme if desired.

  • Serve hot alongside roast chicken, beef, lamb, or on its own with crusty bread.

Find it online: https://britishbakingrecipes.co.uk/leeks-in-cheese-sauce/