Easy chicken puff pastry pie

Method

1. Heat the oven to 200°C/180°C fan/gas 6. In a large deep frying pan, heat a glug of veg oil and add the sliced leeks and carrots. Gently fry for about 10 minutes until starting to soften.
2. Add the garlic cloves and chicken thigh fillets and turn up the heat. Cook for a few more minutes, then add the dry white wine. Bubble the wine for a couple of minutes, then stir in the wholegrain mustard and créme fraíche and simmer for 5 minutes.
3. Mix the plain flour with water to make a paste, then stir it into the pan. Stir in the fresh parsley and pour into a 1.5 litre pie dish with a pie funnel (optional).
4. Unroll ready-rolled puff pastry and drape it over the dish. Trim any excess, press down on the edges with a fork to seal, then cut a small hole in the centre. Cut shapes from the trimmings to decorate the top. Brush the pastry with milk, then bake for 25-30 minutes until golden.