Slow-Cooked Bolognese - Hey Recipe

Ingredients

• 1 quart low-sodium chicken stock (homemade or store-bought)
• 1-1 1/2 ounces powdered gelatin
• 1 (28-ounce) can peeled whole tomatoes
• 1/2 pound chicken livers (finely minced)
• 1/4 cup extra-virgin olive oil
• 1 pound ground beef chuck
• 1 pound ground pork shoulder
• 1 pound ground lamb shoulder
• kosher salt (to taste)
• pepper (to taste)
• 4 tablespoons unsalted butter
• 1/2 pound pancetta (finely diced)
• 1 large onion (finely minced)
• 2 carrots (finely chopped)
• 4 ribs celery (finely chopped)
• 4 medium cloves garlic (minced)
• 1/4 cup fresh sage leaves (minced)
• 1/2 cup fresh parsley leaves (minced, divided)
• 2 cups dry white or red wine
• 1 cup whole milk
• 2 bay leaves
• 1 cup heavy cream
• 3 ounces parmesan cheese (finely grated)
• 2 tablespoons Vietnamese or Thai fish sauce
• 2 pounds dried or fresh pasta (preferably pappardelle, tagliatelle, or penne, for serving)