There is nothing more comforting than a Spanish tortilla de patata....it takes me back to Spain in a really "casero" or home-made way. Eggs, potatoes, onions, olive oil, sea salt....five perfect ingredients in its classic form. Firm on the outside, creamy and melting on the inside. It is one of the main snack foods in Spain, from mid-morning to pre-dinner tapa. Every home cook in Spain has their method, secrets and tweaks to make a great tortilla, but it's also easy to find a great slice in many bars. Here in the US, it can be a challenge....I've been mostly disappointed by the ones I've tried in Spanish restaurants. Home-made is maybe best here....it's easy after a few tries!