01 -
Preheat the oven to 220°C (425°F). Generously grease a 22x33 cm (9x13 inch) baking dish with vegetable oil and place it in the oven to preheat.
02 -
Using a box grater or food processor, grate the potatoes and onion. Transfer them to a clean kitchen towel or cheesecloth and squeeze out as much liquid as possible.
03 -
In a large mixing bowl, combine the grated potatoes, onion, eggs, flour, salt, and pepper. Mix well to ensure everything is evenly incorporated.
04 -
Heat the 1/3 cup of oil in a small pan until hot but not smoking, then carefully mix it into the potato mixture.
05 -
Carefully remove the preheated dish from the oven and pour the mixture into it, spreading it evenly. Bake for 60-70 minutes, or until the top is golden brown and crispy.
06 -
Allow the dish to cool slightly before slicing into portions and serving.