On a floured surface roll out the puff pastry 1/8 inch thick and with a 3-inch star shaped cutter cut out 8 pastry stars. Transfer the stars to a lightly greased baking sheet, brush the tops with the egg wash, being careful not to let the wash drip down the sides, and bake the stars in the middle of a preheated 400° F. oven for 12 to 15 minutes, or until they are puffed and golden. Transfer the stars to a rack and let them cool completely. With a sharp small knife carefully split the stars in half horizontally to form a total of 16 stars, leaving the bottoms cut sides up and the tops cut sides down. Just before serving, spoon about 1 tsp of the sour cream onto each star, divide the caviar among the stars, and sprinkle the hors doeuvres with the chives. Makes 16 hors doeuvres. appet 101