While the mushrooms are soaking, heat the oil in a wide-based ... Cook for 5 minutes, stirring occasionally. Strain the gravy through a fine sieve into a jug, then return to the pan and season ...

Bring to the boil, then stir in the cornflour mixture, reduce the heat slightly and simmer for 2 minutes, while stirring. Adjust the seasoning to taste and strain into a warmed gravy jug.

To make the gravy Pour the fat left in the roasting dish into a jug, leaving about 2-3 tablespoons in the dish. Stir in the flour and place over heat. Cook until the flour colours a little ...