Angela Hartnett served up a classic chicken pie with leeks, tarragon and chestnut mushrooms on This Morning.

The ingredients are: 8 skinless bone-in chicken thighs, 200g chestnut mushrooms, sliced in half , 2 bay leaves, 750ml hot chicken stock, plus extra (or a little white wine) if needed, 2 celery sticks, chopped into 2cm pieces, 2 carrots, peeled and chopped into 2cm rounds, 2 leeks, sliced into 1cm rounds, 1 tablespoon olive oil, 1 small onion, finely chopped, 50g salted butter, 50g plain flour, 150ml crème fraîche, ½ teaspoon mustard powder, ½ a bunch of tarragon leaves, chopped (about 2 tablespoons), 320g sheet of ready-rolled puff pastry, 1 egg, beaten, Sea salt and freshly ground black pepper.

See recipe by Angela in her book titled: The Weekend Cook: Good Food for Real Life available from Amazon now.