Chaussons la confiture

500 g  Puff pastry
           Jam
      1    Egg
           Cristallised sugar
 
  Heat oven to 200oC.
  Roll out the pastry to about 1/2 cm thick.
  Cut out rounds using a 10 cm diameter cutter or a glass.
  Cover one side of the rounds with jam.
  Beat the egg with a tablespoon of water, and brush the jam with a
  small amount of egg.
  Fold the rounds in half and press the edges firmly.
  Place on a dampened baking tray, paint with egg, and sprinkle with
  sugar. Bake in the center of the oven for about 20 mins.
  * DO NOT open the oven door during the first 1/4 of an hour !
  Remove from oven when nicely colored, and serve hot or cold.