Location: Nerea's Coffee, Carrer de Moscou, 40, Sant Martí, 08005 Barcelona
Getting there: Barceloneta station
Cozy local bakery, friendly staff, full of locals on weekends
Specialty: Chocolate croissants, café con leche, chicken empanadas
Price range: $ (~10)
Pro tip: Go early Sunday mornings. Affordable prices, less than €10 for 2 items
Recommended by @Pitufueros