1Preheat oven to 425.
Melt the butter in a saucepan,add bacon and onion and cook until onion is soft. Remove from heat,stir in flour and blend in the milk. Return to heat and bring to a boil,stirring constantly. Stir in the chicken,salt,pepper and garlic and cook until it's heated. Remove from heat and cool.
Roll out both sheets of pastry about 1/8 inch thick. Using a 4 inch pastry cutter,cut out about 20 circles. Transfer half the circles to a lightly floured surface,put 1 tablespoon of the filling on top of each,leaving room around the edge to seal. Moisten the outer edge of each circle with water and cover with the top layers. Pull up and seal as tightly as possible. Brush the top of each with the egg wash. Cit a few small slits in the top of each with the tip of a paring knife. Place on greased baking tray. Bake for 20-25 mins or until pasties are puffed and golden brown. Serve warm.