Cream the butter, mix well with the cream cheese and crushed Gorgonzola, mix with sherry and very finely chopped cashews leaving a few for garnish, perhaps add a pinch of salt to taste.
Fill the cream into the piping bag, squirt into the small shortcrust pastry tartlets, garnish with halved cashews.
Per canapé 4 g egg white, 10 g fat, 3 g carbohydrates : 510 joules, 122 calories.