Leek gratin
- Easy
- 10
- Cheap
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Preheat oven to 200°C.
Cut off the ends of the leeks and remove the green leaves (save them for another recipe).
Carefully wash the white parts of the leeks.
Sauté leeks in a frying pan with a knob of butter until softened.
Place the cooked leeks in an ovenproof dish. Add the double cream.
Sprinkle generously with Gruyère and bake for 20 minutes.