It’s a umami, rich, vegan friendly gravy.
Make the stock, in a pot bring a litre of water to boil and mix in 75g Lee Kum Kee (Professional) Vegetarian Stir-fry Sauce (with Shiitake Mushroom) , set aside.
Preheat the oven to 200°C. Place the onions, carrots, celery and thyme in a large flameproof roasting tin. Toss together with the oil, lightly season and roast for 20 mins.
Stir through the tomato purée and cook in the oven for a further 15-20 mins.
Put the roasting tin on the hob over a medium heat. Stir in the flour until well incorporated, pressing down on the vegetables to extract as much flavour as possible. Deglaze with 200ml water and pour into stock pot.
Stock bring up to the boil and cook for 15-20 mins until the mixture starts to thicken. Strain through a sieve and add another tablespoon of Lee Kum Kee (Professional) Vegetarian Stir-fry Sauce (with Shiitake Mushroom) to taste and ready to use.