Treacle Tart is famously Harry Potter's favorite dessert at Hogwarts, often served at the end of a feast. It's a rich and sweet treat that evokes the warmth and comfort of the Great Hall's dinners.
Preheat oven to 350°F.
Mix syrup, breadcrumbs, lemon zest, and juice.
Pour filling into crust.
Brush top with beaten egg.
Bake for 25 minutes until filling is set and crust is golden.