Sous Vide Pork Ravioli

Ingredients

• 2 bone-in pork shanks (about 2 pounds)
• 1 (14.5-ounce) can diced tomatoes
• 1 cup beef stock
• 1 cup finely diced onion
• 1/2 cup finely diced celery
• 1/2 cup finely diced carrot
• 1/2 cup red wine
• 1 bay leaf
• Kosher salt and freshly ground black pepper
• 1 cup fresh whole milk ricotta cheese
• 1/2 cup grated Grana Padano cheese
• 3 large eggs
• 1 tablespoon minced fresh parsley
• 1 clove garlic, minced
• 48 wonton wrappers
• Melted butter, for serving
• Chopped fresh herbs, for serving