Chicken (or Quorn) Pie

For the filling

• 4 chicken fillets trimmed and diced into chunks

• 1 leek cut then placed in a bowl of cold water to rinse

• 1 carrot topped and tailed and sliced thinly

For the pastry

• 250g plain flour

• 125g butter

• 2 tablespoons cold water

(see tutorial on making pastry)

For the sauce

• 1 tablespoon butter

• 2 tablespoons flour

• 200ml milk

• 250ml stock