El Imperfecto is a cluttered, low-key cocktail bar on Plaza de Matute in the Barrio de las Letras, where the décor is a pile-up of mismatched lamps, neon, and old posters. The house reputation rests on its mojitos, poured in a room that feels closer to a friend's living room than a polished cocktail lounge. It trades on character rather than precision, which is the point.
The signature pour is the Mojito Imperfecto, built with dark rum and brown sugar, and the menu runs through sangria, piña coladas, and a long list of mixed drinks. Tripadvisor reviewers return to the mojitos most often, and a two-for-ten-euro deal keeps rounds moving.
The room itself is the talking point. Walls layered with photos and neon signs, secondhand furniture, and a low, warm light give it the eclectic feel that regulars describe on Foursquare. Music plays a real part, and the bar fills with a mix of students, locals, and visitors working through Huertas.
One practical note matters: the bar does not take cards, so cash is the rule. Interesting Bars and Tripadvisor reviewers both flag this, along with the close quarters once the small space fills on weekend nights.
This is a casual opener or a late stop rather than a destination for technical cocktails. Anyone chasing a perfectly balanced drink should adjust expectations, but for an easy, atmospheric round it delivers.
The surrounding Letras district holds Madrid's denser cocktail cluster. Step up to the technical end at Salmon Guru and The Passenger, or keep it classic at the century-old Viva Madrid a few streets away.
The drinks list runs broad rather than precise. Beyond the signature mojito it covers sangria, piña coladas, gin and tonics, and a rotating set of mixed drinks, and Foursquare reviewers note the pours are generous for the price. The two-for-ten-euro mojito offer keeps rounds moving on busy nights.
The room does much of the work. Layered posters, mismatched lamps, old furniture, and a soundtrack that leans into jazz and soul give it the eclectic feel that Interesting Bars flags as the main draw. It fills quickly once the Letras evening crowd arrives, and the close quarters are part of the character.
Two practical notes matter: the bar is cash only, and seating is tight, so arriving early on weekends helps. This is a casual opener or a late, atmospheric stop rather than a temple to technique. For an easy round with personality it delivers, and the surrounding district covers the precise end if that is the goal.
For visitors mapping the Letras nightlife, the bar pairs naturally with a tapas crawl through the surrounding streets, since the small plates and cheap rounds suit a stop between dinner spots rather than a whole evening in one chair. Reviewers across Tripadvisor and Foursquare agree on the formula: come for the mojito and the room, bring cash, and treat it as one stop on a longer Huertas night rather than the destination.
The name translates as "the imperfect one," and the bar wears that as a statement rather than an apology. Nothing in the room matches, the menu is broad rather than curated, and the appeal lies in the warmth and the price rather than polish. In a district that has grown more upmarket, it holds a scrappier, student-friendly corner that long-time regulars value precisely for resisting the trend.
Keep exploring with our best cocktail bars in Madrid guide, the full Madrid bar guide, and our edit of the best cocktail bars worldwide.
Sources: Tripadvisor, Foursquare, and Interesting Bars. Last verified June 2026.