RE: Travels in Spain: Chocolatería 1902 - Madrid, Spain
OMG the ultimate sin!
Here in Portugal they sell those in little food tracks (if I can call them like that) where they fry them in few shapes. The skinny ones are covered in sugar and cinnamon. Some big fat ones are stuffed with all kinds of thick sauce filling: chocolate, caramel, custard or jam.
Every local holiday or part has those! Absolutely delicious!