If Boursin cheese is unavailable, Alouette can be used as a substitute, though Boursin offers a higher quality flavor profile. Boursin Poivre is a great option for those who enjoy black pepper.
For a variation, you can stuff the Brie with 1/4 cup of sliced, toasted almonds and 1/4 cup of chopped parsley instead of using Boursin cheese.
Brie En Croute can be prepared ahead of time. Assemble and refrigerate until ready to bake. Add 5 minutes to the baking time if baking from cold.
Serve warm with crusty bread, crackers, or fresh fruit like apples and pears.