Fresh mussels should be heavy and closed. To open them, position them with the flat shell on top and work a knife around the inside of the top shell, then lift up the flatter shell. All the black innards and the beard are removed. Only the cylindrical, white muscle between the valves, also called the nut, is used.The nut of the scallop is best when gently pan-fried or grilled in its decorative shell. However, it can also be gratinated in a sauce or topped with a hard cheese mixture.
Diehard fans even eat fresh scallops raw or just very briefly tossed in a hot frying pan.