Combine ¼ cup of the sesame oil, plus the next five ingredients in the blender until the marinade has a smoothie-like consistency.
Place the ribs in a container and pour the marinade on top. Flip the ribs around so they are well-covered with the marinade.
In a separate container, coat the scallions with the remaining ¼ cup of sesame oil.
Place the ribs and scallions on the grill or under the broiler. Cook the ribs for 4-6 minutes on each side until the outside is a bit crispy and caramelized. The scallions will wilt and brown, but should be taken away from heat before they burn.
