Cut the Korean beef slices in half and place in a mixing bowl.
Add the rest of the ingredients except the cooking oil and toss well with your hand with a massaging motion for 1 minute. Set aside for 15 minutes.
Heat a little oil in skillet over medium-high heat. Take a handful of beef mixture and flatten down on your palm, then add it to the hot skillet. Cook for 2 minutes each side or until browned. Cook a few pieces at a time. Serve hot with rice.