In a blender add soy sauce, onion, green onion, pineapple juice, oyster sauce, glaring, honey, sesame oil, onion powder, ginger and black pepper.
Blend together until fully combined and smooth.
Pour over the sliced short ribs and mix until every piece is well covered.
Allow to marinate for 1 hour or overnight in the refrigerator.
When ready to cook, add oil to a grill pan over medium high heat.
Cook the marinaded short ribs for 3-4 minutes per side until golden brown and slightly charred.
Serve and garnish with green onion and toasted sesame seeds.
Enjoy!