First, place a sheet of foil onto the benchtop. Top the foil with a piece of parchment paper the same size. Place the fish in the centre of the parchment paper and bring two opposing sides of foil and parchment paper to the centre above the fish. Fold over each other. Fold the remaining ends closed. Place the parcel with the fish inside, onto a baking tray and bake until the fish is flakey and cooked through. Baking times will differ depending on the size and type of fish.