Season the chuck roast generously with salt and pepper on all sides.
Heat olive oil in a large Dutch oven over medium-high heat. Sear the roast for 3-4 minutes per side until a deep brown crust forms. Remove and set aside.
In the same pot, add chopped onion and cook until softened, about 5 minutes. Add garlic and ginger and cook for another minute until fragrant.
In a medium bowl, whisk together soy sauce, brown sugar, gochujang, sesame oil, and grated pear with its juice.
Return seared roast to pot. Pour sauce over roast, ensuring it’s well-coated. If sauce doesn’t come halfway up roast, add 1/2 to 1 cup beef broth.
Bring liquid to a simmer, then reduce heat to low. Cover with a tight-fitting lid and cook for 3 hours 30 minutes to 4 hours, or until meat is fork-tender.
Remove roast from pot and let rest for 10-15 minutes, covered loosely with foil.
Skim excess fat from sauce. Thicken by simmering uncovered for 5-10 minutes if desired.
Serve shredded or sliced pot roast with sauce, garnished with green onions and sesame seeds.
Notes
Searing the meat develops deep, rich flavor. Don’t skip this step.
Cooking time varies by roast size. Meat is done when it falls apart easily with a fork.
For spicier flavor, add more gochujang or red pepper flakes.
Substitute Fuji or Gala apple if Asian pear is unavailable.
Slow cooker method: After searing and sautéing, transfer to slow cooker. Cook on low 7-8 hours or high 4-5 hours. Slow cookers require longer cooking due to lower temperatures.
Look for Mother-in-Law’s or Chung Jung One brand gochujang for best results.