Instructions

1. Preheat the oven to 375°F (190°C).
2. Line a baking dish with one sheet of puff pastry, making sure it covers the bottom and the sides.
3. In a saucepan, heat the milk over medium heat until it starts to steam but not boil.
4. In a separate mixing bowl, whisk together the granulated sugar, egg yolks, and all-purpose flour until well combined and no lumps remain.
5. Gradually pour the hot milk into the egg mixture while whisking constantly to prevent the eggs from curdling.
6. Pour the combined mixture back into the saucepan. Cook over medium heat, stirring constantly, until it thickens into a custard and just starts to bubble.
7. Remove the custard from heat and stir in the vanilla extract.
8. Pour the custard over the puff pastry in the baking dish, spreading it evenly.
9. Cover the custard with the second sheet of puff pastry, pressing down gently to seal the edges.
10. Bake for 25-30 minutes, or until the pastry is golden brown and puffed.
11. Remove the krempita from the oven and let it cool completely at room temperature. This will allow the custard to set.
12. Just before serving, dust the top with powdered sugar.
13. Slice into squares and serve. Enjoy this slice of Serbian tradition!