01 - 
                Form beef into 4 patties; sprinkle salt, pepper and garlic powder on each patty.
              
              
              
                02 - 
                Grill or fry patties to desired doneness.
              
              
              
                03 - 
                Toast sesame buns until lightly golden.
              
              
              
                04 - 
                Use a potato peeler to make long thin cucumber slices.
              
              
              
                05 - 
                Toss green onions with the sesame oil and grill until lightly charred.
              
              
              
                06 - 
                In a small bowl mix together the mayonnaise, sriracha sauce and sesame oil.
              
              
              
                07 - 
                Add a generous dollop of mayo to the top and bottom buns. Place patty on the bottom bun; top with a ½ tablespoon of hoisin sauce, the grilled onions and cucumber slices. Top with the other half of the bun and serve.