1Brown your meat and fry your onions. Use oil/fat if you need to.
2Stir in your handful of oats to soak up all the juices and fat - if there is too much fat drain but a teaspoon or two for the amount of people it is feeding is fine.
3Add your mushrooms, garlic and grated carrot or celery if you are using.
4Put in your tins of tomatoes and rinse out the can with water and add this.
5Put in lots of herbs - more than you think you should as they soften in the sauce.
6Add your tomato puree and ketchup. Also balsamic and Worcestershire if you are using.
7Leave to simmer for at least and hour and then taste to see if you need any sugar - you may not as the tomato ketchup adds sweetness. Add any wrinkly tomatoes you have laying about.