Mix the egg white and milk, whisk well. Set aside.
Place the dough ball on a floured flat board and punch down.
Roll out the dough into rolls. Using a dough scrapper cut of pieces about golf ball size. Roll into a ball, and flatten.
Using the small rolling pin rolls out to roughly ⅛ inch thick. Using cookie cutter cut circles about 3 to 4 inches in diameter.
Place about 1 TBPS of the filling off center into the circle. Add 3-4 slices of the green olives.
Moisten the edges of the dough circle and fold over into a half moon shape.
Place the filled dumplings onto a parchment paper lined cookie sheet.
Let the dumplings raise for about 20 mionutes.
Brush the egg/water mixture onto the top of the dumplings.
Bake the dumplings at 375 degrees F for 15 minutes, then brush them with the egg wash again. Bake for an additional 15-20 minutes until golden brown.