• 8 large flat mushrooms, cleaned
  • 1 tbsp olive oil
  • 1 tsp soft butter, for greasing
  • 1.5 kg potatoes, such as Desiree, peeled finely sliced
  • 300 ml double cream
  • 300 ml milk
  • 2 tbsp sage leaves, roughly chopped
  • 50 g Pecorino Romano (or vegetarian alternative), grated


  1. 1

    Preheat the oven to 200°C, fan 180°C, gas 6. Put the mushrooms in a roasting tin and drizzle over the olive oil. Roast for 20 minutes until tender, then slice thinly. Reduce the oven temperature to 180°C, fan 160°C, gas 4. Lightly grease a 28 x 21cm ovenproof dish with the butter.

  2. 2

    Put the sliced potatoes in a large saucepan with the cream and milk and add a generous pinch of salt.

  3. 3

    Bring to the boil, reduce the heat and cover with a lid. Simmer, stirring regularly, for about 10 minutes until slightly thickened. Taste the sauce and add more salt if necessary.

  4. 4

    Spoon a third of the potato mixture into the buttered dish, scatter over half the sliced mushrooms, some of the chopped sage and season with black pepper. Repeat with another layer of potatoes and mushrooms, seasoning in between. Finish with a layer of potatoes and the pecorino.

  5. 5

    Bake in the preheated oven for 1 hour or until cooked through - it will be creamy, golden and bubbling.

Nutritional Details

Each serving provides
  • Energy 2110kj 504kcal 25%
  • Fat 31.2g 45%
  • Saturates 18.0g 90%
  • Sugars 5.4g 6%
  • Salt 0.5g 8%

% of the Reference Intakes

Typical values per 100g: Energy 473kj/113kcal

Each serving provides

10.4g carbohydrate 1.2g fibre 2.6g protein

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