Cut the bread into 3/4-inch cubes.
Place the bread pieces on a baking pan lined with parchment paper. Toast in the oven at 425 degrees (220 in Celsius) for about 15 minutes, mix pieces a couple of times while they are in the oven.
Peel the carrots. Chop the carrots and onion into very small pieces.
Chop the pancetta into 1/4-inch dices. Cook them on a pan on high heat until crisp. Use a slotted spoon to transfer the pancetta to a bowl that way the fat from the meat stays on the pan.
Add the onions, carrots and rosemary to the same pan you used to cook the pancetta. Saute until the onions are very tender, about 12 minutes.
Gently stir in the crushed pecan nuts and parsley.
Add the bread and the broth to the pan. Add enough broth for the stuffing mixture to moisten.
Stir in the butter (can be left out but brings more flavor if you put it). If not using onion in this recipe, in this point you can add the Parmesan cheese.
Season with salt and pepper if needed, pancetta and broth are both very salty so be careful that you won’t put too much salt.
Transfer stuffing into a bowl or use part of it to stuff your turkey.
If not serving immediately, you can heat the stuffing in the oven before the dinner.
Enjoy with the Thanksgiving turkey!