Dirty Dough is a small brunch restaurant in an alley in Samgakji, near Sinnyongsan Station, selling a veggie feta sandwich, flounder tapenade, jambon beurre and mortadella sandwich. It fills baguette and sourdough with feta cheese, grilled eggplant and paprika, or tops them with fish tapenade. It sits on the first floor of a villa deep in a narrow alley, and on weekday lunch a half sandwich comes with salad and coffee. You can take out just the baguette and build a sandwich to your taste.