One of my favourite dishes when I go out for lunch or dinner is Boquerones en vinagre (fresh anchovies in vinegar).
This is a typical tapa, especially in the south of Spain. If you live in Spain this is a tasty, easy and economical dish that needs to be prepared 2-3 days before eating.
I've found this recipe in the blog Savour Shop, that explains perfectly the way to marinate the Boquerones before tasting.
Note: Boquerón translates as fresh, mediterranean anchovy.
1 clove garlic, chopped
fresh parsley, finely chopped