Gastronomes will no doubt be aware of the presence of an increasing range of exotic mushrooms on the supermarket shelves. In the far east, oyster cap mushrooms (Pleurotus ostreatus) are cultivated on short lengths of tree trunk. However, there is no need to go to all this trouble. You just need a toilet roll. Mystified? Then read on...
Note: The mushrooms should be picked once they have reached a suitable size, as spores, to which some people have allergies, can be released by over-ripe mushrooms.