Ingredients:
* 50 small open cup mushrooms
* 125 g (4 oz) Camembert, Brie or Cambozola cheese, diced
* 50 g (2 oz) butter, softened
* 125 g (4 oz) walnut pieces, finely chopped
* 2 garlic cloves, crushed
* 2 tablespoons fresh parsley, chopped
* a little milk