Boursin cheese is a spreadable garlic and herb cheese. Boursin Poivre
contains a lot of black pepper for those who like pepper. Boursin is
available in many grocery stores but can almost certainly be found in
higher quality produce and specialty stores. If Boursin or Boursin
Poivre cannot be found, Alouette can be used as a substitute although
it is not as high quality as Boursin, in my opinion.
Beat the egg and water together in a small bowl.
Thaw pastry 20 minutes; on a floured surface roll to a 15" circle.
Preheat oven to 400°F degrees.
Slice Brie in half horizontally. Spread Boursin cheese on one half.
Re-assemble Brie and place in the center of pastry.
Brush pastry edges with egg wash, and pull up sides to enclose Brie.
Place seam side down on ungreased baking sheet. If desired, decorate
the top with pastry scraps. Brush with egg wash.
Bake for 20 minutes. Let stand at least 10 minutes before serving.