This flaky filo pie filled with a spiced potato mixture is a favourite across the Balkans - and it's not hard to see why. Using store-bought filo pastry, this couldn't be easier to make at home.
Preheat oven to 190°C/375°F. Cut the potatoes into quarters and add them to a large saucepan. Add the salt and cover with cool water. Cover the pot, set over high heat and bring to a boil. Reduce the heat to medium-low and simmer until fork tender - about 10-15 minutes. Drain the potatoes and return to the pan.
Meanwhile, add the olive oil to a skillet and set over medium heat. Once shimmering, add the garlic, paprika and chili flakes. Cook for about 30 seconds before removing from the heat.
Pour the oil mixture over the potatoes and add the parsley. Use a potato masher to roughly mash the potatoes - it's okay if there are lumps and texture. Taste to adjust for seasoning, adding more salt and pepper if necessary. Set aside.
On a clean work surface, lay down one sheet of filo pastry and brush with melted butter. Lay another sheet of pastry down next to it, overlapping the ends by about 5 cm (2 in). Brush with more butter and repeat with one more sheet of filo so that the strip of pastry measures roughly 1 metre (3 feet). Continue to brush and layer the filo so you have one more even layer.
Arrange the filo strip lengthwise across your work surface. Evenly spread the filling over the top quarter of the pastry.
Working carefully, tightly roll the pastry around the filling so that it resembles a long cigar. With the seam-side facing in, gently spin the log into a spiral, tucking the end under the burek. Transfer to a parchment-lined baking sheet and brush the exterior with any remaining melted butter.
Bake the burek until the pastry is crisp and deeply golden brown - about 35-40 minutes. Allow the burek to cool for at least 10 minutes before serving.