Knead a dough of flour, eggs, a pinch of salt and a couple of tablespoons of olive oil, roll into a ball, cover with a towel and set aside for an hour.
Melt a couple of tablespoons of butter in a frying pan, fry the meat and bone marrow, cut into pieces. Then turn the meat in a food processor, adding mortadella and ham, an egg and a handful of Parmesan cheese, salt, pepper and add nutmeg.
Roll out the dough thinly, cut out circles with a diameter of 4 cm, put a spoonful of minced meat on each, moisten the edges with milk or water and close up, first forming a crescent, and then connecting its edges.
Bring the broth to a boil, dip the tortellini in it and simmer for a few minutes over low heat.
Serve with broth and sprinkle generously with parmesan.