Preheat your oven to 400 degrees. Line a baking sheet with parchment paper.
Bring your picadillo to room temperature. Place your cooked picadillo into a fine mesh strainer and strain the excess liquid from the meat onto a bowl. This will help avoid having soggy pastry dough.
Roll out or unfold the puff pastry sheets over the parchment paper. Using a 3 inch biscuit cutter, cut 9 circles into each pastry sheet.
In the center of each pastry douch circle, place 2 tablespoons of the picadillo filling. Be sure to leave about half and inch of an edge to allow for the dough to seal.
Brush the edges with a little bit of water and then cover with another dough circle on top.
Gently seal the edges of the dough circles together lightly pressing down with your fingers. If you cant fully seal them, that's ok as long as you're able to seal 75% of the pastry.
Brush the whisked egg on the top each pastry to get that golden crust.
Bake for 20-23 minutes or until golden brown.
Why the pastries bake, make your simple syrup. Combine the sugar and water in a microwave safe bowl and microwave for 30 second increments, mixing each time until the sugar is fully disolved.
Remove the pastries from the oven and lightly brush the pastries with simple syrup.