*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.
Toast sesame seeds in a small skillet over medium heat until lightly browned, 3 to 5 minutes.
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.
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.
Preheat grill for medium heat and lightly oil the grate.
Drain short ribs, discarding marinade, and cook on the preheated grill until browned, about 5 minutes per side.