Harvested by hand, pearly sea scallops showcase their natural sweetness and silken texture in this simple chilled appetizer. Juicy grapefruit and aromatic mint heighten the refreshing tang of the citrus marinade, while slivers of onion and chile impart a subtle heat.
A chilled ceviche of bay scallops, lime, avocado, cilantro, and hearts of palm is served in scallop shells atop a bed of rock salt. If the scallops are too large they may be cut in half before marinating. Similarly, if you need to substitute sea scallops you may cut them into 1/2-inch pieces.