The story
Tucked away on Bergara Kalea, Bar Antonio has earned a fiercely loyal following for a single dish. Jack’s Dining Room calls it “the best tortilla in the world”—a caramelized egg-and-potato omelette that sells out within hours. Cosa mangiamo oggi echoes the hype, calling the tortilla a “must-try” and “super approved” classic of the city.
The magic lies in the texture: a giant, creamy tortilla de patatas with caramelized onion and what Cosa mangiamo oggi describes as “perfect balance.” It’s a walk-in-only, no-frills affair—buzzy, hole-in-the-wall, and entirely local. Arrive early or risk missing the legend.
Synthesised by AI from every creator’s review. First reviewed 2023.
What diners say
Synthesized from 22 Google reviews · tap an aspect for the detail
Bar Antonio is a beloved pintxos spot in San Sebastián, celebrated for its exceptional tortilla de patatas and a warm, lively atmosphere. Diners consistently praise the friendly, attentive service and the quality of dishes like oxtail and scallops, though a minority note that the small space can feel crowded and wait times can be long.
Tortilla de patatas
The tortilla de patatas is widely hailed as one of the best, with many calling it a must-try and some declaring it the best they've ever had. It's a signature dish that draws both locals and tourists.
Service
Staff are frequently described as friendly, professional, and attentive, with several reviewers noting personalized recommendations and a welcoming atmosphere. A few isolated mentions of less friendly interactions exist, but the overwhelming sentiment is positive.
Pintxos variety
Beyond the tortilla, the oxtail, scallops, prawn ravioli, and txuleta are repeatedly praised as sublime and flavorful. Diners recommend asking staff for suggestions to discover the best options.
Atmosphere
The bar is described as cozy, lively, and cheerful, with a vibrant energy that adds to the experience. Some note the small size can feel a bit cramped, but most find it charming.
Wait times
Many reviewers mention waiting in line, especially during peak hours, but most agree it's worth it. A few suggest arriving early or just before opening to minimize wait.
Value
The food is considered excellent value for money, with high-quality pintxos at reasonable prices. The overall experience is seen as well worth the cost.
Most-loved dishes
AI summary of what 3 dish mentions say about the food
Bar Antonio’s tortilla de patatas earns rapturous praise for its custardy, molten center, while the overall vibe is one of unpretentious, deeply satisfying comfort.
“This is what people say is the best tortilla in the world. Essentially a caramelized egg and potato omelette, and it sells out in an hour. I would eat this every day for breakfast if I could.”
“This tortilla is incredible. The onion is caramelized like crazy, the potato is cooked in three stages — first the onion, then the potato, then the green pepper — and the balance between eggs, potatoes, pimiento and onions is perfect. It's creamy inside, light, and the potato makes the difference because it's fried together with the onion and really delicious. The onion is caramelized but also crunchy at times. My technical comment: onion omelette for which he was crazy, big size of frozen Peroni (missing here), wild cheering and free burping. I can't add anything else. A giant slice costs €2.90. Come early because they run out.”
What creators say
3 creators have covered Bar Antonio. Most active: Cosa mangiamo oggi?, Jack's Dining Room
Shorts 1
Videos 2
Bar Antonio serves a standout tortilla that's a must-try.
Dishes mentioned
Tortilla di Cipolle Patate e Lievito
The tortilla with onions, potatoes and yeast is amazing — we already finished it, it's that good.
- Cosa mangiamo oggi?Loved
La mega FRITTATA spagnola per cui fare LA FILA 🥚🥚🥚🥚🥚🐣 · @ 0:24
Super approved place for a giant, creamy tortilla de patatas with caramelized onion and perfect balance — a must-try in San Sebastián.
Dishes mentioned
Tortilla de Patatas
This tortilla is incredible. The onion is caramelized like crazy, the potato is cooked in three stages — first the onion, then the potato, then the green pepper — and the balance between eggs, potatoes, pimiento and onions is perfect. It's creamy inside, light, and the potato makes the difference because it's fried together with the onion and really delicious. The onion is caramelized but also crunchy at times. My technical comment: onion omelette for which he was crazy, big size of frozen Peroni (missing here), wild cheering and free burping. I can't add anything else. A giant slice costs €2.90. Come early because they run out.
