Remove the guava paste from its package and cut it into thin slices and set aside.
Remove the puff pastry sheet from it’s package and roll it out on a floured surface.
Use a cookie cutter to cut shapes on the pastry sheets.
Take one piece of cut up puff pastry shape. Fill the center with smaller pieces of guava paste. With you fingertip lightly apply water on the edge of the puff pastry shape. Cover it with another piece and press the edges together to completely close it. Place it on a cookie sheet.
Make small cuts in the center.
Repeat this process until you have used up all of the sheets.
In a bowl beat one egg with 1 tbsp of milk. Apply this egg wash on top of the bites. (This step is optional).
Preheat oven to 400°.Bake these bites for 20 minutes until you see the top has turned golden brown.