Buttered toast with tomato jam and Cantabrian anchovies (Tosta de mantequilla, mermelada de tomate y anchoas del Cantábrico)

Name: Juan G Arminio (cocinero)
Address: C. Nardos, 42, 11500 Campiña-Serrano, Cádiz, Spain, Campiña-Serrano, ES

Because of its perfectly balanced combination of flavors, they say it is a delicacy.

The tapas dictionary

Cantabrian: Refers to seafood or preparations originating from the Cantabrian Sea area in northern Spain. It is often associated with fresh, high-quality fish and shellfish. It is consumed as part of a meal or as a tapa, typically accompanied by a drink.