In a heavy saucepan heat oil and once the oil shimmers place basil leaves. Fry the leaves until crispy. 1-2 minutes. Remove and put on paper towel. Set aside.
Add 2 tbsp butter to oil. Add the onion, carrot and celery. Saute until lightly browned.
Add ground chuck and break up and cook until meat only slightly pink.
Season with salt.
Add wine and cook until evaporated, stir occasionally.
Add milk and 2 gratings of nutmeg from zester. Stir well until milk is almost evaporated.
Add the tomatoes to pot. Bring to soft boil and lower to low simmer. Cook uncovered for 3 hours.
If liquid evaporates add 1/2 c water as needed.
When done it is ready to serve.
About half hour before being done boil water and cook your pasta. Serve pasta with the bolognese. Top with basil leaves and parmesan.