Onion Seongsu 어니언 성수점

Bare concrete walls survive from the building's past as a small factory, framing cushioned nooks and regular tables, and the stairs up to the rooftop seats are very steep. The house blend coffee leans dark and smoky-bitter, while the Geisha blend, for an extra charge, is smoother and better balanced. The signature milk tea stays quite sweet even when ordered with less sugar.