🌮 Tortilla de patata con cebolla is a traditional Spanish dish that consists of a thin, flat cake made from potatoes and onions. The potatoes are boiled and mashed, then mixed with finely chopped onions and seasoning before being spread thinly onto a hot, oiled pan and cooked until crispy. This simple yet delicious dish is a popular choice for a quick and satisfying meal. It can be enjoyed on its own or served with toppings such as salsa, sour cream, or guacamole.