Creating Slow Cooker Korean Beef is straightforward if you follow these simple steps:

1. Prepare the Beef: Cut the beef chuck roast into 1-inch cubes and trim any excess fat.
2. Mix the Sauce: In a bowl, combine soy sauce, brown sugar, honey, minced garlic, grated ginger, sesame oil, gochujang, rice vinegar, and black pepper. Whisk until smooth.
3. Add the Beef: Place the beef cubes in the slow cooker. Pour the sauce over the beef, ensuring all pieces are covered.
4. Cook: Cover the slow cooker and cook on low for 8 hours or on high for 4 hours, until the beef is tender and easily shredded.
5. Thicken the Sauce (Optional): If you prefer a thicker sauce, mix cornstarch with a little water to create a slurry. Stir it into the sauce and cook on high for an additional 15-30 minutes.
6. Garnish: Once cooked, shred the beef with two forks and mix it back into the sauce. Garnish with chopped green onions and sesame seeds before serving.

These steps will guide you in creating this incredible dish effortlessly.