Preparation:
place beef in freezer for 60-90 minutes until firm slice into thin 1-1/2x5 inch strips cut whites of three-fourths the scallions into 4-inch strips mince greens and remaining scallions for garnish, set aside roll a strip of beef around each piece of scallion white secure with a toothpick combine combine soy, sugar, sesame oil, mirin, and water pour over rolls to moisten cover and chill for 1-24 hours remove rolls to a plate, reserve marinade heat 2-4 tablespoons oil in a skillet, over a high flame add 4 rolls and brown quickly on all sides remove to a plate repeat as needed until all rolls have been browned return all rolls to skillet add pour reserved marinade over all heat and turn until sauce is quite thick and rolls are well glazed remove from heat remove toothpicks from rolls slice rolls in half or thirds remove to a serving platter pour remaining sauce over all garnish with minced scallions and toasted sesame seeds serve hot |