Clean and carefully chop the onion, celery and carrot and put them in a pot with enough extra virgin olive oil and let them become golden. In the meantime, remove the casing from your sausage and chop it.
When the vegetables are golden add the minced meat and the sausage and make sure that the meat separates well, and create very small pieces.
Once the meat is a bit cooked (you should not see pink parts), add the wine and wait for the alcohol to evaporate.
Add the tomato paste, the tomato sauce and the milk and mix it well. If your tomato sauce is very thick, add some water too.
When the sauce comes to a boil, lower the power of the stove, cover the pot with the lid and let it cook on low.
Set an alarm to mix your bolognese sauce every 15/20 minutes and cook it for 2,5/3 hours.
Add salt during the last hour, and be careful not to oversalt!
Enjoy the bolognese sauce with your favorite pasta!
