INGREDIENTS
•
1-1/2 lb. flank steak
•
1-1/2 tsp. kosher salt
•
1/2 tsp. freshly ground black pepper
•
1/4 cup plus 1 Tbs. soy sauce
•
1/4 cup canola oil; more for the grill
•
1/4 cup minced fresh ginger
•
1-1/2 Tbs. minced garlic
•
3 Tbs. rice vinegar
•
2 Tbs. Asian sesame oil
•
1-1/2 Tbs. light or dark brown sugar
•
2 tsp. cornstarch
•
20 scallions (preferably thick ones), roots trimmed
•
1 Tbs. sesame seeds, toasted