In Spanish tapas cuisine, what is the key filling of a tortilla de patatas?
Answer
Potatoes and eggs
In Spanish tapas cuisine, the key filling of a tortilla de patatas is potatoes and eggs.
The Spanish omelette is made by cooking sliced or cubed potatoes, usually with onion depending on the recipe, then combining them with beaten eggs and frying the mixture in a pan. It is served hot, warm, or cold, and may appear as a wedge, a pincho, or a small tapa.
The onion question is a famous culinary preference in Spain: some cooks insist on including it, while others make tortilla without it. That variation does not change the defining combination of potato and egg.
Tortilla de patatas should not be confused with a Mexican tortilla, which is a flatbread made from corn or wheat. Nor is it simply any Spanish omelette; “de patatas” specifically identifies the potato version that became one of Spain’s best-known bar foods.