starbucks in madrid...hahaha.....what i mean is the town is so full of wonderful cafes where you can secure the greatest cup of coffee for under a euro.....as for muffins, ever heard of magdalenas?
i know everyone here is not a spaniard so maybe that will help. starbucks latte = $3 to $4 US
cafe con leche local ambient cafe = 1 euro
bag of magdalenas caseras = 1,40 euro

btw i saw one opening next to VIPS on ortega y gasset near calle velazquez (Plaza de Salamanca area) please support your local cafes much better..