For the pork jus: Heat a large pot over medium heat and add the pork and bacon. Cook slowly until very caramelized and then remove from the pot. Add the chopped vegetables and shallots and cook in the remaining fat until caramelized. Pour in the wine to deglaze, scraping up bits at the bottom, and cook for 2 to 3 minutes. Add stock, thyme, peppercorns and bay leaves and simmer for 10 minutes. Strain through a fine-mesh sieve, and then return to the pot and cook until reduced by half. Reserve 1 cup for the dip, and reserve the rest for another use.
For the marmalade: Heat the olive oil in a large pot over medium heat. Add the onions, fennel and salt and cook until dark brown. Stir in the sugar and cook until caramelized and spreadable. Add the vinegar to deglaze, scraping up bits stuck to the bottom and cook down until the vinegar is no longer astringent. Stir in the pepper, and then spread onto a baking sheet to let cool.
For the dip: Preheat the oven to 350 degrees F. Slather the butter on the baguette and toast. Place the pork and bacon on a baking sheet, top with the Comte and warm in the oven. Smear the bottom bun with fennel-onion marmalade and the top bun with the Dijon mustard. Place the sliced pork and bacon on the bottom bun and top with the prosciutto. Cut in half and serve with pork jus. Use remaining onion fennel marmalade for other recipes.
This recipe was provided by a chef, restaurant or culinary professional. It has not been tested for home use.