At some point, all of Madrid comes into Chocolatería San Ginés for a cup of the almost fudgy hot chocolate and the fried dough sticks known as churros. When the music stops in the wee hours of the morning, disco queens from Joy Eslava next door pop in for a cup, and later on, before they head to the office, bankers in three-piece suits order breakfast. There’s sugar spilled everywhere on the tables, yet the marble counters are an impeccable tableau of cups lined up with the handles all facing at the same angle and a tiny spoon on each saucer. Dipping the sugar-dusted churros into the hot chocolate is de rigueur, and, yes, it’s OK to have the snack in the afternoon.