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Onestar Old Fashioned Hamburgers
Restaurant
4.5 (186 reviews)
23 Nonhyeon-ro 26-gil, Gangnam District, Seoul, South Korea
+82 2-578-4377
Highlights from Reviews
• Exceptional burger quality
The burgers are consistently described as juicy, flavorful, perfectly cooked, and among the best in Seoul, if not Asia.
• Authentic American taste
Many reviewers praise the spot for its genuine American burger and diner experience, reminiscent of In-N-Out.
• Outstanding patty melt
The patty melt, with its caramelized onions and crispy bread, is frequently highlighted as a must-try dish.
• Delicious onion rings
The thick-cut and crispy onion rings are highly recommended, often cited as the best many have ever had.
• Nostalgic 80s vibe
The interior decor, music, and overall atmosphere evoke an authentic 80s American diner experience, appreciated by customers.
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