Can I make these bars ahead of time?
Yes. Assemble and refrigerate for up to 2 days before serving. Add the chocolate ganache within a few hours of serving for best texture.
How do I get the pistachio kanafeh layer crispy?
Toast the pistachio mixture in a dry skillet over medium heat until fragrant and golden, 3–4 minutes, stirring constantly to prevent burning.
What if I don't have sour cream?
Substitute equal parts Greek yogurt or use all heavy cream, though this will slightly alter the tang and texture.
How should I cut these bars cleanly?
Use a hot, wet knife, wiping it clean between cuts. Chill the bars for at least 2 hours before slicing for cleaner edges.
Can I freeze pistachio cheesecake bars?
Yes, freeze for up to 3 months in an airtight container. Thaw in the refrigerator overnight before serving.