Have a hot tray in the oven at 200C.
Close the papillote package as the video shows.
Place the papillote onto the hot tray in the oven for 8-12 minutes depending on size of the fish.
Take the fish out and leave to rest for 5 minutes.
Pour the remaining sauce from the pouch into a pan.
Slightly reduce and add all remaining ingredients finish with chopped dill.
