Tortilleria El Calderon ★ 4.2
Tortilleria El Calderon on Calle Cuna in Seville makes tortilla de patatas to order with a runny centre, slices at 3 euros for working-day breakfast or lunch.
Try: Tortilla de patatas slice
Tip: Tortillas come out every 25 minutes; order at the counter for takeaway. Standing stools only.