Puff pastry blueberry turnovers are handheld pies that can be made in 30 minutes or less right at home. Buttery and flaky puff pastry is filled with blueberry pie filling and baked in the oven until golden brown.
Preheat oven to 425 degrees Fahrenheit. Line a baking sheet with parchment paper and set aside.
In a saucepan over medium heat, add blueberries, granulated sugar, cornstarch, lemon juice, and lemon zest, stirring to combine. If your blueberries are out of season or not very juicy, you may need to add 1-2 tablespoons of water to help them cook down. Bring to a simmer. Reduce heat to medium-low and cook for about 8-10 minutes, or until mixture has thickened. Remove from heat and allow to cool.
On a lightly floured surface, roll out puff pastry sheets to approximately 12 inch squares. Cut each sheet into four squares.
Spoon a scant ¼ cup of pie filling onto a corner of each square, avoiding ½ an inch around the edges. Fold the opposite corner of each puff pastry over to cover filling and form a triangle. Press the edges with a fork to seal.
In a small bowl, whisk egg and 1 tablespoon of water to create an egg wash. Brush tops and edges of each turnover with egg wash.
Sprinkle the tops with turbinado sugar and slice a vent into each turnover.
Transfer turnovers to parchment lined baking sheet. Bake for about 19-22 minutes, or until turnovers are golden brown.
Notes
To thaw puff pastry, place in refrigerator the night beforehand or thaw on countertop for 30 minutes.
Egg wash can be substituted with heavy cream for a similar result.
Leftover turnovers will keep for up to 2 days in a tightly sealed container at room temperature or in the refrigerator for up to 5 days.
Turnovers can also be frozen for up to two months (raw or baked). To bake from frozen, add up to 5 minutes to the listed baking time.
Turbinado sugar can be substituted with more granulated sugar.