Mushroom 'caviar' and Californian sparkling wine

Every so often you come across a great little recipe than does wonders for almost any wine you pair with it. And so it is with mushroom ‘caviar’, a regular offering from the takeaway section of my favourite local restaurant Culinaria. Basically it’s a mushroom pâté but so reduced and wickedly intense it’s like pure essence of mushroom. Except for the perfect counterpoint - a tiny touch of tarragon.