Brown the Meat: Heat 1 tablespoon of olive oil in a large skillet (or the bowl of your slow cooker if it’s stovetop friendly). Add the beef and pork mixture, breaking it apart with a wooden spoon. Cook until the meat is very deep golden brown. Transfer to a 3-5 litre slow cooker bowl if using a skillet.
Sauté Vegetables: Heat the remaining tablespoon of olive oil in the skillet over medium-high heat. Sauté the onion and carrot until softened, about 5 minutes. Add the garlic and cook until fragrant, about 1 minute.
Combine Ingredients: Transfer the sautéed vegetables to the slow cooker. Add the crushed tomatoes, beef stock, tomato puree, red wine, oregano, basil, sugar, and cinnamon. Stir to combine.
Slow Cook: Cover and cook on low for 6-7 hours or on high for 3-4 hours. Stir occasionally if possible.
Finish and Serve: In the last 15 minutes of cooking, boil the pasta in salted water according to the packet instructions. Drain and drizzle with a bit of olive oil. Add the chopped parsley to the bolognese just before serving. Toss the pasta with the bolognese sauce and sprinkle with parmesan cheese and additional parsley.