Prep Time 20 minutes mins
Cook Time 30 minutes mins
Total Time 50 minutes mins
**Alternatively, you don’t need to make a box. Simply cut out squares of puff pastry (4-inch squares are good), brush them with egg white (again, making sure it doesn’t touch the sides of the pastry), and bake them for the requisite 20 minutes. You can then just split them in half horizontally, spoon the filling on the bottom, and then cover with the top.