Speaking of markets, La Boqueria market in Barcelona :
The tapa of tapas at Cervesaria Catalana in Barcelona: Patatas Bravas, Potatoes with a spicy tomato sauce and aioli. This dish and just about anything else, is good with the wine I mention below.
Marqués de Cáceres Crianza Spanish wine which you can buy, for example in Barcelona as we did several times, or happily also at the Corkscrew in downtown Memphis. I'm sure it's available at many other liquor stores around town.