Creating Korean Beef Bulgogi is a simple process when you follow these easy steps:

1. Prepare the Marinade: In a bowl, combine the soy sauce, brown sugar, sesame oil, minced garlic, minced ginger, chopped green onions, and rice wine (if using). Mix well until the sugar is dissolved.
2. Marinate the Beef: Place the thinly sliced beef in a large resealable bag or bowl. Pour the marinade over the beef, ensuring it is well-coated. Seal the bag or cover the bowl and refrigerate for at least 20 minutes, or up to 2 hours for deeper flavor.
3. Heat the Grill or Pan: Preheat a grill or a large skillet over medium-high heat. If using a skillet, add a little oil to prevent sticking.
4. Cook the Beef: Remove the beef from the marinade, allowing excess marinade to drip off. Cook the beef in batches, ensuring not to overcrowd the pan, for about 2-3 minutes on each side or until it is browned and cooked through.
5. Garnish: Once cooked, remove the beef from the heat and sprinkle with sesame seeds.
6. Prepare the Sides: While the beef is cooking, prepare any fresh vegetables and cook rice or noodles according to package instructions.
7. Serve: Serve the Korean Beef Bulgogi hot, with rice or noodles and fresh vegetables on the side.

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