Dry Roasting is a process by which heat is applied to dry foodstuffs without the use of oil or water as a carrier. Unlike other dry heat methods, dry roasting is used with foods such as nut

Nut (fruit)

A nut is a hard-shelled fruit of some plants having an indehiscent seed. While a wide variety of dried seeds and fruits are called nuts in English, only a certain number of them are considered by biologists to be true nuts...

s and seed

Seed

A seed is a small embryonic plant enclosed in a covering called the seed coat, usually with some stored food. It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth within the mother plant...

s, which do not contain significant fat or moisture of their own. Dry roasted foods are stirred as they are roasted to ensure even heating.

Dry roasting can be done in a frying pan

Frying pan

A frying pan, frypan, or skillet is a flat-bottomed pan used for frying, searing, and browning foods. It is typically in diameter with relatively low sides that flare outwards, a long handle, and no lid. Larger pans may have a small grab handle opposite the main handle...

 or wok

Wok

A wok is a versatile round-bottomed cooking vessel originating in China. It is used especially in East and Southeast Asia.Woks are most often used for stir frying, but can also be used in other Chinese cooking techniques, such as in steaming, deep frying, braising, stewing, smoking, or making soup...

 (a common way to prepare spices in some cuisines), or in a specialized roaster (as is used for coffee beans or peanuts). Dry roasting changes the chemistry of proteins in the food, changing their flavor, and enhances the scent and taste of some spices. It is done with adding various herbs, spices and sugars into the frying pan and roasting until brown.
Common dry roasted foods include peanut butter

Peanut butter

Peanut butter is a food paste made primarily from ground dry roasted peanuts, popular in North America, Netherlands, United Kingdom, and parts of Asia, particularly the Philippines and Indonesia. It is mainly used as a sandwich spread, sometimes in combination as in the peanut butter and jelly...

, which is made from peanuts that have been dry roasted, tea

Tea

Tea is an aromatic beverage prepared by adding cured leaves of the Camellia sinensis plant to hot water. The term also refers to the plant itself. After water, tea is the most widely consumed beverage in the world...

, which is made from tea leaves that are dry roasted, either immediately after picking or after fermentation, and coffee

Coffee

Coffee is a brewed beverage with a dark,init brooo acidic flavor prepared from the roasted seeds of the coffee plant, colloquially called coffee beans. The beans are found in coffee cherries, which grow on trees cultivated in over 70 countries, primarily in equatorial Latin America, Southeast Asia,...

 and chocolate

Chocolate

Chocolate is a raw or processed food produced from the seed of the tropical Theobroma cacao tree. Cacao has been cultivated for at least three millennia in Mexico, Central and South America. Its earliest documented use is around 1100 BC...

, which are made from roasted coffee beans and roasted cocoa beans, respectively.