Photo by Kathryn Brass-Piper
Fold 16-inch piece of parchment in half lengthwise. Place corn-tomato mixture along one side of fold.
Photo by Kathryn Brass-Piper
Place fish over tomato-corn mixture, squeeze lemon over fish, and top with butter.
Photo by Kathryn Brass-Piper
Fold parchment over fish leaving space for steam to circulate.
Photo by Kathryn Brass-Piper
Seal pouch by making small, overlapping folds around edges.
