baked brie recipe

1 sheet puff pastry, thawed but still cold All-purpose flour, for rolling 1 (8 to 12-ounce) round brie cheese (5- to 7-inches in diameter) 1 large egg, beaten Optional extras: Add extras like jam, preserves, cranberry sauce, roasted nuts and honey, or jalapeño jelly Baguette slices or crackers, for serving