The layers of thinly shaved, tender potatoes are held together by egg and flavored with sautéed shallots and diced Spanish chorizo. This recipe is not a traditional Spanish tortilla (and no, it’s not the same as a Mexican tortilla).
Heat a 10” (25cm), oven safe, non-stick frying pan over medium heat, add the olive oil and heat through. Working in batches, add potatoes and fry until tender, about 3 minutes. Remove to a paper towel lined plate to drain and continue with the remaining potatoes.
Return the pan to medium heat, remove all but 2 tablespoons (27g) of the olive oil and heat through. Add the shallots and sauté until tender, about 4 minutes. Then add the diced chorizo and continue to sauté until the chorizo is fragrant and crispy, about an additional 2 minutes.
Heat oven to 350ºF (180ºC). In a large mixing bowl whisk together the eggs until they fall in ribbons from the whisk. Season with salt. Add the cooked potatoes and the shallot chorizo mixture to the bowl and stir to combine.
Return the pan to medium-low heat, add the butter and allow to melt. Carefully pour the egg mixture into the skillet and top with the goat cheese. Using a rubber spatula, carefully stir the egg mixture then evenly spread in the pan. Cook until the eggs are still runny in the middle but set around the outside, about 5 minutes.
Transfer the pan to the oven and bake until the eggs are puffed and the mixture is set, about 8 minutes.
Let cool slightly then invert the pan onto a large serving plate and flip the tortilla. Top with herbs then cut into slices and serve.