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Cheesy leek gratin

Creamy leek gratin

Tender leeks baked in a rich, creamy cheese sauce with a golden topping, creating a comforting side dish that's perfect with roasts and family meals
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Cook Time 25 minutes
Course Side

Equipment

  • Saucepan
  • frying pan
  • Shallow oven proof dish

Ingredients
  

  • 2 leeks, sliced
  • 15 g unsalted butter
  • 1 tbsp olive oil
  • pinch of salt

Cheese sauce

  • 15 g unsalted butter
  • 15 g plain flour
  • 150 ml semi skimmed milk
  • 55 g cheddar cheese, grated plus a little extra for sprinkling on top

Instructions
 

  • In a frying pan, melt the butter and add the olive oil, then turn the heat down add the leeks (and bacon if using) and gently fry the leeks until softened with a pinch of salt sprinkled on top.  Remove from the heat and set aside.
  • Preheat the oven to 180℃
  • In a saucepan, melt the butter over a medium heat. With a balloon whisk add the flour and whisk continuously for a minute.
  • Gradually whisk in the milk, a little at a time. Cook for around 5 mins until thickened and smooth.
  • Remove the sauce from the hob, add the cheese and stir until it is well combined and melted.
  • Add the leeks (and bacon) and a pinch of pepper to the cheese sauce to combine together.  Pour into a small shallow dish, sprinkle with a little cheese and place in the oven for 20-25mins until golden.