Ingredients
Equipment
Method
- Preheat your oven to 200°C (180°C fan) or 400°F.
- Trim and wash the leeks, then cut them into 2cm rounds.
- Heat the olive oil in a large frying pan over medium heat. Add the leeks, season lightly, and cook for 5 to 7 minutes until just softened.
- In a saucepan, melt the butter over medium-low heat. Stir in the flour and whisk for 1 minute to make a smooth roux.
- Gradually add the milk, whisking constantly, until you have a thick, smooth sauce.
- Add in 100g of the grated Cheddar and the Dijon mustard. Stir until the cheese is melted. Season with salt and pepper.
- Arrange the softened leeks in the baking dish.
- Pour the cheese sauce over the leeks, ensuring they’re covered.
- Sprinkle with the remaining Cheddar and the Parmesan.
- Bake for 20-25 minutes, until golden and bubbling on top.
- Rest for 5 minutes before serving.
Notes
You can swap Cheddar for Gruyère or Red Leicester for a different flavor.
Great with roast chicken, lamb, or as a vegetarian main with crusty bread.
For extra texture, scatter over some breadcrumbs with the cheese topping.
