Preheat oven to 400 degrees F.
Fold the sheets of parchment in half and cut out a half heart shape along the crease, creating a heart shape when unfolded. Unfold the hearts and stuff them each with 4 pieces of banana. Sprinkle with lemon and orange juice and zest. Top each with 1 tablespoon brown sugar, 1 teaspoon butter, 1 teaspoon chopped walnuts and a sprinkle of grated ginger. Fold the edges back together, creating a half-heart-shaped pouch, and seal the edge by crimping and rolling it over itself. Place papillote on sheet pan and bake for 3 to 4 minutes until well heated through. To serve, open packet by slicing or cutting open with scissors at the table for a beautiful presentation.
Yield: 4 servings