Thanks, but already knew how to cook them. Just didn't know whether to cook before freezing or freeze green.Here's a better way to cook. Remove the underbody shell whilst still green, clean, then put in rapidly boiling 'SEAWATER' (not fresh salted water), throw in about 1TBS sugar for every litre of water. Once in the boiling water (don't overcrowd as you want them to come back to boil pretty quickly, so use a real good high gas flame), put the lid on and once the water comes back to the boil again, count 2 minutes then remove them and immediately plunge into iced seawater.Delicious. As a Chef