01 -
In a small saucepan over low heat, combine the Boursin cheese and cream cheese, allowing them to melt together evenly.
02 -
Gradually add the milk in a slow stream, maintaining low heat and avoiding any boiling as you stir.
03 -
Whisk the mixture consistently until a smooth and creamy texture is achieved.
04 -
Add the margarine, salt, and black pepper to the pan, stirring thoroughly to combine.
05 -
Serve immediately over freshly cooked pasta and garnish with fresh parsley if desired.