Chef John's Cassoulet

Pour chicken stock into a large pot. Add pancetta, bones from duck confit, and drained beans. Tie bay leaves, peppercorns, thyme sprigs, and garlic cloves into a small square of cheesecloth to create a bouquet garni; add to the pot. Stir and bring to a simmer over high heat; skim off any foamy scum that forms if desired. Reduce the heat to low and simmer until beans are almost tender, 30 to 45 minutes.

Sprinkle pork pieces with salt and pepper. Heat oil in a skillet over medium-high heat; add pork and brown for 3 to 5 minutes. Transfer to a bowl. Add sausage to the skillet and cook until nicely browned on all sides, turning occasionally, 3 to 4 minutes. Cut sausages in half and transfer to the bowl with pork pieces.

Remove fat and skin from duck confit and add to the same skillet. Cook over medium heat until fat is rendered, about 3 minutes. Transfer all fat and browned pieces from the skillet to a mixing bowl. Add melted butter. Stir in bread crumbs and chopped parsley; stir until mixture looks like damp sand. Mix in about 1/4 to 1/2 cup bean cooking liquid.