These easy semi-homemade blueberry turnovers are made with light, flaky puff pastry dough and filled with a delicious homemade filling. These bakery pastries make a super yummy treat that combines the sweetness of blueberries with the flakiness of puff pastry! These turnovers are perfect for any occasion, whether it's breakfast, dessert, or a special snack!
Preheat the oven to 400°F. Line a baking sheet with parchment paper.
In a saucepan, combine the blueberries, granulated sugar, cornstarch, lemon zest, lemon juice, vanilla extract, and cinnamon. Cook over medium heat, stirring occasionally, for about 5-7 minutes until the mixture thickens and the blueberries start to burst. Remove from heat and let it cool slightly.2 cups fresh blueberries,1/4 cup granulated sugar,1 tablespoon cornstarch,Zest of 1 lemon,1 tablespoon lemon juice,1/2 teaspoon vanilla extract,1/4 teaspoon ground cinnamon.
Unfold the thawed puff pastry sheet on a lightly floured surface. Roll it out slightly to smooth any creases.2 sheets puff pastry.
Cut the puff pastry sheet into 8 equal squares.
Spoon a heaping tablespoon of the blueberry mixture onto the center of each square.
Brush the edges of the pastry squares with the beaten egg. Fold each square diagonally to form a triangle. Press the edges together to seal, and use a fork to crimp the edges.1 large egg.
Place the turnovers on the prepared baking sheet. Brush the tops with more beaten egg and sprinkle with coarse sugar if desired.
Bake in the preheated oven for 20 minutes or until the turnovers are puffed up and golden brown.
Let the turnovers cool for a few minutes before serving.
Notes
Make sure the puff pastry is thawed for about 30-35 minutes before using it, ensuring it's pliable but still cold. This will make it easier to work with and help achieve a flaky, golden crust.