The most lush, smooth French chestnut flour tart with the colours and taste of Autumn: chestnut pumpkin (potimarron), leeks, sage, pecan nuts and topped with a fine sprinkling of cheese. A great Vegetarian recipe for your holiday menu - and excellent if you prefer to serve with leftover turkey.
First, preheat the oven (for the filling) to 200°C/180°C fan/400°F/Gas 6.
Mix all the ingredients together in a stand mixer or food processor and mix just until the dough forms a ball. Wrap in cling film and leave to rest in the fridge for 30 mins. Remove the dough from the fridge and stand about 10 minutes to make it easy to roll out.
Roll out the pastry on a lightly floured surface then using the pastry roller, wrap around the pastry to transfer it to a loose-bottom tart tin (28cm).
Press the pastry gently into the sides. Again with the roller, roll over the top of the tin to clean up the edges. Chill in the fridge for 30-40 minutes (this is important so the sides won't fall during baking later).
Pre-bake in the oven for 20 minutes covered in parchment paper and ceramic baking beans (or raw beans), then leave to cool. (Fill the tart and bake for a further 20-25 minutes - see below.)
Roast the pumpkin whole in the oven for 15 minutes. This will make it easier to cut into slices. Let cool slightly then spoon out the seeds.
Place the pumpkin with 2 tbsp of the olive oil in a roasting tin and roast covered in the oven for 20 minutes.
Meanwhile, in a large frying pan, heat 1 tbsp of the oil and gently soften the leeks. As soon as they're translucent, turn down the heat to low and cover for 5 minutes to soften further.
Whisk together the eggs, cream, sage, nutmeg, salt and pepper in a bowl.
Spread out the roasted pumpkin evenly over the tart dough base, then the leek and pour over the creamy egg mixture. Top with the pecan nuts then the cheese and bake in the oven for a further 25 minutes (if making small tartlets, bake for only 15 minutes).
Serve with a good Chardonnay or Chenin Blanc or a fruity red such as a Beaujolais Cru: Morgon, Brouilly, or Fleury.
Nutritional Information for 6 servings:
650 calories per serving; 15g protein; 48g carbohydrates.