Preheat your oven to 325°F.
In a large oven-proof pot, cook the diced pancetta over medium heat until crispy.
Remove the pancetta and leave about 2 tablespoons of fat in the pot.
Season the veal shanks with salt and pepper.
Brown them in the pancetta fat, turning occasionally, until they have a nice crust.
Remove and set them aside.
In the same pot, add olive oil if needed, and sauté the rosemary, thyme, bay leaf, and cloves.
Stir for a minute to release their fragrant aroma.
Pour in the white wine to deglaze the pot.
Let it simmer for a few minutes until it reduces by half.
Add the tomatoes with their juice and beef broth to the pot.
Return the veal shanks to the pot, nestling them into the sauce.
Cover and place in the oven.
Braise for 1 ½ to 2 hours until the meat is tender.