Gluten-free chestnut, mushroom and parsnip pie

Gluten-free chestnut, mushroom and parsnip pie
  • Snack
  • medium
  • 4
  • 1 hour 30 minutes, plus cooling time


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  • For the filling

  • 1 tbsp of vegetable oil
  • 1 small red onion, finely chopped
  • 125g of chestnut mushrooms, roughly chopped
  • 25g of butter
  • 2 garlic cloves, finely chopped
  • 180g of cooked chestnuts
  • 100g of mixed nuts, roasted and roughly chopped
  • 1 tsp fresh rosemary, chopped or ½ tsp of dried rosemary
  • 1 tsp fresh thyme, chopped or ½ tsp of dried thyme
  • 200g of parsnip, peeled, boiled and mashed
  • 50g of gluten-free oats, flaked quinoa or gluten-free breadcrumbs)
  • 100g of mature cheddar, grated
  • 1 egg, beaten
  • 75g of sun-dried tomatoes, drained then chopped
  • salt
  • pepper
  • For the pastry

  • 125ml of water
  • 55g of unsalted butter, cubed
  • 55g of vegetable fat, cubed (Howard uses Trex)
  • 1 egg white, lightly beaten (save the yolk for glazing the pie)
  • 250g of Freee by Doves Farm Gluten Free White Bread Flour
  • 1/2 tsp salt
To make the filling, heat the oil in a large shallow pan and gently fry the onion until soft
Add the mushrooms, butter and garlic and cook gently until the mushrooms are softened but still have a little bite
Take the pan off the heat and add the chopped chestnuts, roasted nuts and herbs
Stir in the mashed parsnip, oats, cheese, salt and pepper and beaten egg, then set aside while you make the pastry
To make the pastry, heat the water, butter and vegetable fat in a small pan until the fats have melted and the water is bubbling
Whisk in the beaten egg white, then pour into a bowl containing the flour and salt
Stir quickly with a wooden spoon, then bring it into a ball with your hand
Line a 15cm solid-bottomed cake tin with about two-thirds of the pastry. It’s a tricky pastry to roll so probably the easiest way to do this is to press clumps or patches of the dough against the base and side of the tin, flattening it by hand until it’s about 5mm thick all over
Fill the pastry case with half of the pie filling, then arrange the sundried tomatoes on top and finish filling with the rest of the mixture
Roll out the rest of the pastry and cover the top of the pie. Don’t worry if the pastry cracks – just press it back together. Use any pastry scraps to make decorations for the top. The pastry will roll into thin sausages that you can use to edge the rim of the pie, then press with a fork to give a crimped effect
Use a small pastry cutter to cut a steam hole in the centre, then brush with beaten egg yolk
Chill the pie while you preheat the oven to 200°C/180°C fan/gas mark 6
Bake on a baking tray (preferably one with a lip as the pie can spatter fat over the rim) for about 1 hour until golden and firm on top and shrinking away from the sides of the tin. (Don’t be alarmed if the pie looks as if it’s essentially frying in fat during baking – it keeps the pastry tender and stops it drying out too much.)
Leave to cool slightly before removing from the tin, then finish cooling on a wire rack. Refrigerate when cold
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