I live around the corner from one of the best vermuterias in the city, a tiny watering hole called Morro Fi. More of a walk-up than a sit-down, this little shop offers two versions of their famous homemade vermut (vermouth for Americans)--white and red--and a selection of mouthwatering aperitivos, such as anchovy stuffed olives, cheese stuffed peppers and tuna belly in olive oil.
Sunday afternoons are lively with the regular crowd spilling out onto the sidewalk and filling the only two tables that they have. You can buy bottles of their tipple to bring home, as well as cava, jars of olives and peppers, and high-quality canned seafood. It's one of my favorite traditions here in Barcelona, and one that might be a bit off the beaten path for tourists but worth the walk.