Preheat oven to 375 degrees F. Line 2 baking sheets with parchment paper or silicone liners. Set aside.

On a large, flat work surface, unroll the puff pastry sheet. Press any perforations together to seal. Cut into four equal square pieces and separate the pieces from one another. Set aside.

Open the can of peach pie filling and chop the peaches into bite sized pieces. Spoon a heaping Tablespoonful of peach pie filling into the center of each puff pastry square. Brush the edges of the square with the egg white wash. Then, take one corner of the puff pastry and bring it to the diagonal corner, pinching the edges shut with your fingers. Brush the tops with the egg white wash. Repeat with remaining turnovers.

Bake for approx. 20-25 minutes or until the tops are light brown. While the turnovers cool, prepare the glaze in a medium bowl by whisking together all of the glaze ingredients until thick but pourable. Drizzle onto the warm turnovers. Serve turnovers warm or at room temperature.