Preheat oven to 375 degrees Fahrenheit (190 degrees Celsius). Line a baking sheet with Gefen Parchment Paper and set aside.

Roll out puff pastry sheet into a large rectangle or square and arrange it on the prepared baking sheet. Fold over about 1/2 inch (one centimeter) on each side to form a crust.

Using a fork, poke holes in the center area of the puff pastry. Par-bake for 15 minutes; remove from oven and press down the center to ensure there is a well for filling. Set aside to cool.

Once cooled, spread lemon pie filling inside the tart. Top with cherries. Brush egg on the crust, then sprinkle sugar over it.

Place the baking sheet in the oven and bake for about 25 minutes, until the crust is golden. The tart will be

liquidy when it comes out of the oven, but it will set as it cools. If desired, sprinkle lemon zest over the

tart just before serving.