The most popular of the Boletes mushrooms is the Porcini. Varieties in addition to the Porcini (Boletus edulis ) mushroom are red and yellow bolete, white
king bolete, butter bolete, ragger's bolete, and painted slippery cap. However,
Porcinis are definitely the most desirable for cooking and eating.
In France Boletes mushrooms are known as Cepe and in Britain called the Penny Bun, the Boletes
are among the most common, widespread
groups of wild mushrooms, including some of the best-tasting. Boletes have
several features that, in combination,
make them distinct: They nearly all grow on the ground, near trees,
because these fungi form commensual
relationships with trees - they provide minerals and water (and sometimes
even provide growth hormones) for the
trees in exchange for food (the fungus actually interconnects with the
tree's microscopic root hairs). Because of this,
except for those species associated with evergreens, the mushrooms are most
common in the summer in temperate
climates when the hardwood trees are active.
Most Boletes are umbrella-shaped, with a cap and stalk, not shelf-like,
although there are exceptions with short,
off-center stalks - also, these are mushrooms that have tubes, a spongy
layer containing tiny pores instead of
gills. Virtually all Boletes disseminate their spores through those pores,
which are tiny holes on the undersides of
their caps. When the mushrooms are very young, you may need a magnifying
lens to see the pores. Spores travel
down closely-packed, vertical tubes to reach the pores. You can usually
peel the layer of tubes that lead to the pores
away from the cap of a Bolete. Boletes often appear the day after it rains,
are very perishable, especially in the
summer and it is advisable to cook or dehydrate them the day they are found
in the wild. Check for insects in the
stems, and discard.
Boletes mushrooms are used fresh or can be dried for consistent availability
and have a rich, deep, earthy flavor which
is famous throughout the world in numerous cuisines. Musty and slightly
nutty tasting with a firm texture that becomes meaty and silken when
cooked, Boletes are wonderful in wild rice pilaf or added to a stuffing
dish. You can sauté the caps in olive oil with garlic or onions (or other
original or traditional ethnic seasoning combinations), roast them, or
brush with seasoned oil and broil. The best Boletes have a strong, meaty
flavor and soft texture, go great in any recipe calling for wild mushrooms,
and though not as tender as the caps, if the stems may be simmered in soups or used to add
flavorful morsels for pasta sauces and casseroles.