Two distinct versions of Peru operate under one roof in Blagden Alley, separated only by a flight of stairs. On the ground floor, Causa functions as a focused, twenty-seat tasting room where the pacing is deliberate and the noise levels stay low. The space relies on bare concrete and Japanese minimalism to keep attention on the open kitchen, effectively putting you in the front row of the service. You sit close enough to watch the line work, often facing a display of whole fish aging in glass cabinets – a "fish market" supplement allows you to pick a specific catch to be prepared as a crudo or roast alongside the set menu. The kitchen here traces a specific path through coastal and Andean ingredients, leaning into the Nikkei influences of Peruvian cuisine.
Upstairs at Amazonia, the energy shifts entirely. This is the casual, louder counterpart, designed with a sprawling heated rooftop and a heavy emphasis on pisco. The room fills with plants and conversation, and the menu switches from linear tasting courses to shareable plates and skewers. It is where you go for things like lomo saltado, Amazonian ceviches, and grilled anticucherias rather than a three-hour commitment. While the downstairs dining room requires a reservation and a plan, the second floor often absorbs the overflow or the crowd looking for a Pisco Sour. The bar program leans hard into the spirit, mixing both classic preparations and original cocktails that match the looser, jungle-inspired setting.