I have been delighted to find some of these in the field edges and verges this season as I have not seen them for several years. However, a word of caution: these mushrooms must always be cooked, never eaten raw, and some people do have an allergic reaction to it so try a small quantity if it is your first time. Nevertheless it is a popular mushroom and relatively easy to find and identify.
You need to get out early to pick the Blue Leg or Field Blewit (Lepista saeva) because it is equally popular with grubs of various kinds. You are likely to encounter it growing alongside footpaths, on the edge of woodland, fields or roadsides as well as on waste ground – basically anywhere a bit “marginal” and a bit grassy. They will tend to appear repeatedly in the same place so you can go back for more if they suit you.
They are distinctive, large mushrooms, with a lilac, streaked tinge to the stem, which itself can be fairly bulbous, and a grey to brown pale cap. The gills are fairly dense and white. I need to stress again that these details alone are not enough to get a positive identification and it is imperative that a good field guide and preferably two guides are consulted if you have not picked these before. See my article on Picking and Identifying Edible Fungi for some more general guidance of staying safe. Blue Leg can be muddled with the poisonous Livid Agaric (Entoloma sinuatum) which has a much paler cap and a reddish/brown spore print and which will cause sickness.
Don’t be put off trying for this mushroom if you are prepared to take the right precautions, though, as the taste is exceptionally good and well loved by foragers. There is a good chance you will be able to find a local person who can show you these as they are so popular. You will notice a slightly perfumed and somewhat un-mushroomy aroma when you cut the fruit bodies and a nice nutty taste when cooked. Cleaning well, chopping and frying in butter with some onions is a good way to bring out the best of the flavour.
You could also try cooking them The Traditional Nottinghamshire Way.
- How to Forage for Wild Mushrooms Without Damaging Forest Ecosystems (eatdrinkbetter.com)
- The good mushroom guide (telegraph.co.uk)
- Consuming issues: A delicious (or deadly) feast from the woods (independent.co.uk)