Pincho de cangrejo is a traditional appetizer or snack originating from Basque Country. These pinchos usually consist of thin baguette sliced that are topped with shredded crabmeat, mayonnaise, and scallions. The crabmeat should be as fresh as possible, the mayonnaise can be homemade or store-bought, while the scallions should be minced, and only the white parts are used.