Gluten-Free Kalbi Beef

Step 1
Toast sesame seeds in a small skillet over medium heat until lightly browned, 3 to 5 minutes.

Step 2
Combine sesame seeds, soy sauce, sugar, green onions, sesame oil, garlic, and red pepper flakes in a saucepan. Simmer over medium-low heat, stirring constantly, until flavors combine, about 10 minutes. Remove from heat and let marinade cool completely, about 15 minutes.

Step 3
Place short ribs in large resealable plastic bags and cover with cooled marinade. Seal and let marinate in the refrigerator, at least 1 hour or overnight for maximum flavor.

Step 4
Preheat grill for medium heat and lightly oil the grate.

Step 5
Drain short ribs, discarding marinade, and cook on the preheated grill until browned, about 5 minutes per side.