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Gratin de poireaux

Leek gratin

Gratin de poireaux: northern French braised leeks baked in béchamel with Comté

Gratin de poireaux is the winter comfort dish of northern France, from Picardy to Flanders, where leeks grow through the cold months and turn up at almost every family supper. The leeks are gently braised in butter until sweet, laid in a dish, covered with a nutmeg béchamel and grated Comté and baked until golden. Comté is made with animal rennet and raw milk; use a vegetarian or pasteurised hard cheese if needed. The common mistake is leaving grit in the leeks; wash them well between the layers. Chef's tip: braise the leeks covered with a splash of water before baking; they turn silky and never squeak.
Total time
45 min
Difficulty
easy
Serves
4
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Ingredients

Serves4

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Method

0/3 done
  1. Step 1: Heat the oven to 400°F (350°F fan). Melt 20 g of the ⅔ oz butter in a wide pan, add the 6 leeks, 4 tbsp water and half the ⅜ tsp salt. Cover and cook gently for 10 minutes until tender. Drain and lay them in a baking dish.

    10 min
  2. Step 2: Melt the rest of the 1 ⅜ oz butter, stir in the 1 ¼ oz plain flour for 1 minute, then whisk in the 2 cups whole milk gradually and simmer for 5 minutes until thick. Season with 1 pinch ground nutmeg, ½ tsp black pepper and the rest of the ⅜ tsp salt, and stir in half the 1 ⅜ oz grated Comté or vegetarian hard cheese.

    8 min
  3. Step 3: Pour the sauce over the leeks, scatter with the rest of the 1 ⅜ oz grated Comté or vegetarian hard cheese and bake for 18–20 minutes, until bubbling and golden brown.

    20 min

Nutrition per serving

Calories
330 kcal
Protein
13 g
Carbs
22 g
Fat
21 g
Fibre
3 g

Nutrition values are estimates.

K
Recipe by

KrazyBadal

All recipes by this chef →

Good to know

How long does gratin de poireaux take?
About 45 minutes in total: 15 minutes to prepare and 30 minutes to cook.
How many people does it serve?
4 as written. Change the servings above the ingredients and every amount scales to match.
Is it vegetarian?
Yes. It has no meat or fish.
What can I use instead of leeks?
1 onion per leek.
What can I use instead of butter?
The same weight of ghee or coconut oil (for frying and most baking).

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