It is my favourite food because by looking at the name and the pic, it is clear that this tortilla de potatoes is made of eggs with fried potatoes. That it so simple!!! It is known as spanish omelette and spanish people use to eat this as breakfast and for picnic. It sounds simple but to actually make a succesful tortilla like in the pic, you need some skill to do it. How to make it? First of all, fried the sliced potatoes in oil(preferably virgin oil). Then they are mixed with raw scrambled eggs before being slowly re-fried on a pan. The tortilla is fried first on one side and then flipped over to fry on its other side this is where you need some skill in order to make out a complete shape like in the pic. For your information, i have failed to make a complete shape for the 1st few times and it needs praticing. My introduction end here and you welcome to ask some tips from me anytime^_^