If you’re grabbing dinner in the Centro neighborhood, Chocolatería San Ginés (open 24 hours) is the place to go for dessert. Take your pick between thin and crunchy or thick and soft churros (Spain’s answer to donuts), which come with a bittersweet dark chocolate sauce that’s so good you’ll want to drink it straight from the cup. You can take everything to go, or grab a seat downstairs - where it tends to be less crowded - and chug your chocolate without judgement.