01 - Season beef chunks generously with salt and freshly ground black pepper
02 - In a large skillet over medium-high heat, sear beef on all sides until browned, approximately 2-3 minutes per side. Transfer to slow cooker
03 - In the same skillet, add onion, carrot, and celery. Sauté for 4-5 minutes until softened. Add garlic and tomato paste; cook for 1 minute longer
04 - Transfer vegetables to slow cooker. Add crushed tomatoes, beef broth, red wine, bay leaves, oregano, thyme, and red pepper flakes. Stir to combine
05 - Cover and cook on low setting for 8 hours, or until beef is fall-apart tender
06 - Discard bay leaves. Shred beef with two forks directly in slow cooker and stir to combine with sauce
07 - About 20 minutes before serving, cook pappardelle according to package instructions until al dente. Drain thoroughly
08 - Toss pasta with ragu or serve ragu spooned over pasta. Top with grated Parmesan and fresh herbs as desired