In a bowl, combine softened cream cheese, 1/2 cup powdered sugar, and vanilla extract.
Add in the egg and beat just to combine.
On a lightly floured surface, roll out both sheets of thawed puff pastry to a 12 x 12 inch square.
Cut each sheet into 9 even squares. Then cut a 1 inch border around each square.
Transfer each square to a baking sheet lined with parchment paper and brush the edge border of each square with egg wash.
Pit each cherry and cut them in halves.
Combine the cherries with corn starch, granulated sugar, and lemon juice.
Place 1 heaping tablespoon of the cream cheese mixture into the center of each square. Then place 1 tbsp of the cherry mixture on top. Sprinkle some sliced almonds on top of the cherries as well.
Bake at 400 degrees Fahrenheit for 15 minutes.
Meanwhile combine 1 cup powdered sugar, 1 tbsp milk and, 1 1/2 tsp lemon juice. This will be the glaze.
Once the pastries are cooled, drizzle the glaze over each square.