First, make the egg wash.
1. Fold one flap over, brush the opposite flap with egg wash then fold it over and press to seal.
2. Brush edges of bottom flap with egg wash, fold over the top, wrap edges in, and press to seal. Repeat with tp flap.
3. You should now have a complete package, gently press the edges and top to secure seals.
4. Turn package over and, if you wish, cut out some sort of shape from the scrap pastry and paste it to the top of the package with egg wash. Then brush entire package with egg wash and bake.