A Cashew is a type of small roughly horseshoe-shaped nut. Cashews contain a toxin that must be removed before they can be eaten. The so-called 'raw cashews' occasionally available in healthfood shops have been cooked but not roasted or browned.
Cashews are a common ingredient in Asian cooking, especially in dishes such as 'chicken with cashews'. They can also be ground into a spread similar to peanut butter. Cashews have a very high oil content, and they are used in some other nutbutters to add extra oil.