In a blender or Magic Bullet combine the onion, garlic, ginger, soy sauce, honey, sesame oil and rice cooking wine. Place the thinly sliced beef into a crock pot and toss in the puree mixture and stir until beef is well coated. Cook on high for 2 1/2 to 3 1/2 hours until the beef is tender, add 1/4 cup of beef broth or water if the mixture begins to look dry.