01 -
Remove 1 sheet of puffed pastry from the freezer and thaw for 15-20 minutes at room temperature, until it can be unfolded without cracking.
02 -
Preheat oven to 200°C (400°F). Line a large baking sheet with parchment paper.
03 -
In a small bowl, combine the egg and water; beat until well combined.
04 -
Place thinly sliced peaches in a large mixing bowl. Add sugar, salt, cinnamon, and cornstarch; toss well ensuring all peaches are evenly coated in the mixture.
05 -
Gently unfold the puffed pastry on the prepared baking sheet. If it cracks, gently press the tears together with slightly wet fingers.
06 -
Layer the peaches evenly in 3 tidy rows on the puffed pastry, leaving a 2.5 cm (1 inch) border around the edges. Sprinkle blueberries evenly over the peaches.
07 -
Lightly brush the exposed pastry crust with the egg wash.
08 -
Bake for 16-18 minutes, rotating once during baking, until the crust is puffed up and golden brown and the peaches are tender.
09 -
While the tart bakes, prepare the vanilla glaze. In a small bowl, combine confectioners' sugar, vanilla, and cream; whisk until smooth, adding more cream as needed to reach desired consistency.
10 -
Drizzle the vanilla glaze over the warm tart just before serving. Consider serving with a scoop of vanilla ice cream.