How to Make It
Preheat the oven to 325°. In a small bowl, combine the bread crumbs and cream and let stand until the crumbs absorb the cream, about 2 minutes.
In a bowl, mix the ground beef, veal and pork with the breadcrumb mixture, egg yolks, mustard seeds, whole-grain mustard, parsley, garlic, white pepper and salt, blending thoroughly. Pack the mixture into a 2-quart loaf pan and bake for 1 hour and 15 minutes, until an instant-read thermometer inserted into the center of the meat loaf registers 155°. Let the meat loaf rest for 10 minutes before serving.