Tomato and Onion Flavoured Gravy

• 4 onions, sliced
• 1–2 tablespoons water
• 8 tomatoes, chopped

Cook the sliced onions with the water very slowly until they have naturally caramelized, stirring occasionally. This will take at least an hour. Add the tomatoes, garlic and herbs and continue to cook for 15–20 minutes until the tomatoes are soft. Pour in the Noilly Prat or vermouth and the white wine and boil to reduce until almost dry. Add the jus, bring to the simmer and cook for 30 m