With either a hand blender or mixer machine, cream the cream cheese with 3 tablespoons of granulated sugar, vanilla, and mix well until soft and creamy.
Cut the puff pastry sheet into 3" squares. You will get approximately 15 squares
Place 1 tablespoon of cream cheese/sugar mix in the middle of each puff pastry square
Take two opposite corners or the square and place a small amount of egg wash on the tips and fold the ends toward the center onto of the cream cheese
Place each pastry square onto a cookie sheet that has been lined with baking paper
Spread some egg wash on the tops of the puff pastry squares and sprinkle some granulated sugar
Bake the puff pastry in the oven for approximately 18-20 minutes or until light and golden in color
As soon as they are done, cover the tops with corn syrup and again sprinkle granulated sugar on top
Notes
You can substitute the cream cheese for other ingredients such as fruit preserves, or even Nutella.