"Cooking fish in parchment paper is incredibly simple, and yet fairly terrifying for a novice cook. Since the seafood is encased in paper, there’s really no good way to check if it’s done. The good news: if you use a large, center-cut salmon filet, about 8 or 9 ounces, and cook it for 15 minutes at 400 degrees F, you’re going to be very, very close."