Bar Antonio serves XtremeFoodies favorite tortilla in Spain and indeed the world. There is a long-running debate about whether caramelized onions should be in a tortilla and that question is decisively answered here. Yes! In addition to this blasphemy - they include sweet peppers. The soft potatoes are blended with slightly runny eggs and are sauteed to firm, which contrasts with the light crunch of the pan-seared exterior. This tortilla is life-changing. It comes out fresh and hot at 9:30 am as a hushed crowd waits with anticipation for the world's most stunning Tortilla (Espanol) to descend from the spiral staircase....so, don't be late. Nothing can prepare you for a warm, dry, gooey, wet “Tortilla de Patatas” served here. Since 1969 chef Jose Ramon Exkurdia has dazzled San Sebastian with this masterpiece.