Make-Ahead and Storage
The filling can be made up to 24 hours in advance and refrigerated. Stir well before using.
Uncooked boreks freeze wonderfully. Just place them in an airtight container separated by sheets of waxed paper or parchment and freeze for up to 3 weeks. Bake directly from frozen, increasing the total bake time by 5 to 10 minutes. Leftover baked boreks can be reheated on a wire rack set inside a rimmed baking sheet,in a 400˚F (200˚C) oven for 15 minutes.
collage: placing filling on the phyllo sheet and folding up into a triangular shape; cutting off the overhanging edge; brushing with melted butter
Repeat borek-forming process with remaining phyllo and filling, arranging boreks in pairs with long edges facing each other, so that they form two rows of eight boreks.
16 boreks on a baking sheet lined with parchment paper before baking
Bake until golden and crisp, 20 to 23 minutes, rotating baking sheet halfway through baking. Transfer baking sheet to wire rack and let boreks cool at least 5 minutes before serving. Serve.
