Make Bolognese sauce: In a large pot heat 2 tablespoons of olive oil. Add chopped onion and sauté for 5 minutes. Add chopped carrots and celery, cook for 3-4 minutes, until softened.
Turn the heat to high, add the meat and cook, stirring, until no longer pink. Add the wine and let cook for 4-5 minutes, until the alcohol evaporated.
Add tomato paste, salt, pepper, thyme, rosemary and cook for 2 minutes.
Add tomato paste and water, stir well and bring to a boil. Reduce the heat to low and simmer for at least 1 hour (preferably 3-4 hours), stirring occasionally. The longer you cook; the deeper tastes will develop.
Add the milk and cook for another 10 minutes (this step is optional).
Meanwhile make the pasta: fill a large pot with water, add 1 tablespoon of salt and bring to a boil.
Add the pasta and cook according to package instructions.
Add the pasta to the sauce and toss to combine. If the sauce is to thick add some pasta cooking water.