1. Season the beef chuck roast generously with salt and pepper on all sides.
2. In a large skillet over medium-high heat, sear the roast on all sides until well browned, about 3-4 minutes per side. This step locks in the flavors and gives the roast a beautiful crust.
3. In a bowl, whisk together the soy sauce, brown sugar, water, sesame oil, grated Asian pear, garlic, and ginger.
4. Place the browned roast in your slow cooker. Pour the marinade over the top, ensuring the meat is well coated.
5. Add the sliced onion and chopped carrots around the roast. These will soak up all the delicious juices and add to the flavor.
6. Cover and cook on low for 8-10 hours, or until the meat is tender and easily falls apart.
7. Once cooked, transfer the roast to a serving platter and shred with two forks. Garnish with sliced green onions and sesame seeds before serving.

Remember, the key here is patience. Letting the roast cook low and slow ensures that it’s melt-in-your-mouth tender. Just like my mom used to say, good things take time, especially in the kitchen.