Mix peaches with next four ingredients in bowl.
Open biscuts, slightly roll out with a bit flour so they dont stick. Fill each with 2 tablespoons peach mix and add two cubes brie, fold and moisten ends with heavy cream and crimp together
Put pies on slightly greased cookie sheet or baking pad. Brush with egg mix and sprinkle with sugar. Bake in preheated 400 oven for 12-15min, til browned, let cool slightly before removing.