Mix the cream cheese and butter well in a bowl until it becomes smooth, then stir in the port wine. Add the blue cheese and chives and stir until everything is mixed. Season to taste with salt and pepper.
Pour into a bowl and smooth the surface. Cover with foil and chill for two hours.
After the cooling time, distribute the walnut halves on the pie and press down lightly. Serve at room temperature. Tastes great with bread, crackers, celery sticks or apple and pear wedges.