Pop 1kg of Ground Beef in a mixing bowl and season thoroughly with 6g of Salt and 2g of Black Pepper
Place 15g of Olive Oil in a large thick-bottomed frying pan on a medium heat, then throw in the Beef when it has reached a temperature hot enough to sizzle
Fry the Beef until the moisture has boiled off, and the meat has become slightly golden, then transfer it to a large cooking pot and completely stir in 90g of Plain Flour. Put the frying pan to one side, we'll use that again in a sec
Next, chop 300g of White Onion as small as you can manage, then return the frying pan to a medium heat along with the remaining 15g of Olive Oil
Once hot, toss the Onions into the hot frying pan, stirring every 30 seconds or so. Meanwhile, chop and crush 20g of Garlic, again, as small as you can manage
When the Onions have become vaguely translucent, throw in the Garlic and fry for a further minute. Then, pour in 75g of Balsamic Vinegar and simmer gently for 3-4 minutes before dumping the whole lot in with the beef
Next, grate 300g of Carrots, and finely chop 150g of Celery and add that to the pot along with 500g of Chicken Stock, and place it on a medium heat
Allow the pot to bubble for around 5 minutes, then add 90g of Tomato Puree, 400g of Chopped Tomato, 45g of Light Soy Sauce, 45g of Worcestershire Sauce, 8g of Fresh Thyme, 5 Bay Leaves, a litre of Water and stir
Reduce the stove to a low heat, just enough for the pot to bubble lightly, then cover with a lid and simmer for around 3 hours, stirring occasionally and topping with water if it begins to dry out
After 3 hours, boil the sauce down so it is nice and thick, then add 30g of Butter, and stir until it has melted
Give the sauce a quick taste and add salt if required
Use the sauce for whatever purpose you see fit, or bag it in batches and freeze for up to a Month