You have to wonder how a tiny ham and cheese sandwich on sliced white bread with lettuce and tomato can be one of the best pintxos in Bilbao. But one bite of Bar el Eme’s house specialty will win you over. In business for more than 50 years, this triangle sandwich with homemade bread, homemade mayonnaise and a secret red sauce has locals gobbling it up. Maybe you have to be born here, but it has that old-school club sandwich appeal.