How to make
Open up the oyster shells and remove the edible part from them. In a deep bowl, mix the oysters, the finely chopped spring onions and as much salt and black pepper as you desire.
Squeeze the lemon, mix it with the oil (or olive oil) and pour the mixture over the oysters.
Store them in the refrigerator, where they must be left for at least 2 hours before they are ready to be served.