1 1/2 lbs. ground chuck
kosher salt and pepper
1/4 c. hoisin sauce
6 scallions
1 tsp. sesame oil
4 sesame buns or slices of sesame bread
1/2 c. mayonnaise
1 tsp. Sriracha (Asian Chili Sauce)
12 slices of cucumber
Preheat grill to medium high. Form beef into desired patty shape. Season both sides with salt and pepper.
Grill for 5 minutes. Flip and grill for 3 more minutes (medium doneness). During the last minute, brush the burgers with the hoisin sauce. Remove and let stand 5 minutes.
Brush the scallions with half of the sesame oil. While the burgers are resting, grill until charred and tender.
Toast the bun or bread on the grill.
Mix the mayonnaise with the Sriracha and the remaining sesame oil.
Top the bottom bread with cucumber slices. Top with the burger and grilled scallions. Brush the top bread with sauce and serve.