DIRECTIONS
Preheat oven to 425 degrees.
Cut tops of green onions crosswise into 2-inch pieces, then cut each piece lengthwise into thin strips; reserve for garnish.
Thinly slice white part of green onions.
In small bowl, mix soy sauce and rice vinegar.
Cut four 15" by 12" sheets of aluminum foil.
Arrange 1 flounder fillet on half of each piece of foil.
Spread each with 1/2 tsp. ginger.
Spoon 1 TBSP soy-sauce mixture over each flounder fillet.
Top with sliced green onions.
Fold other half of foil over fish.
To create sealed packets, fold edges of foil over about 1/2-inch all around, overlapping folds.
Place packets in a jelly-roll pan.
Bake for 8 minutes.
When serving, cut an “X” in the top of each packet to let steam escape before serving.
Check that fish flakes easily when tested with a fork.
Garnish fish with reserved green-onion strips.