Apple sauce or applesauce is a purée

Purée

Purée and mash are general terms for cooked food, usually vegetables or legumes, that have been ground, pressed, blended, and/or sieved to the consistency of a soft creamy paste or thick liquid. Purées of specific foods are often known by specific names, e.g., mashed potatoes or apple sauce...

 made of apple

Apple

The apple is the pomaceous fruit of the apple tree, species Malus domestica in the rose family . It is one of the most widely cultivated tree fruits, and the most widely known of the many members of genus Malus that are used by humans. Apple grow on small, deciduous trees that blossom in the spring...

s. It can be made with peeled or unpeeled apples and a variety of spices (commonly cinnamon

Cinnamon

Cinnamon is a spice obtained from the inner bark of several trees from the genus Cinnamomum that is used in both sweet and savoury foods...

 and allspice

Allspice

Allspice, also called Jamaica pepper, pepper, myrtle pepper, pimenta, or newspice, is a spice that is the dried unripe fruit of Pimenta dioica , a mid-canopy tree native to the Greater Antilles, southern Mexico, and Central America, now cultivated in many warm parts of the world...

). Fruit flavorings or sweeteners such as sugar

Sugar

Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

, high-fructose corn syrup, or sucralose

Sucralose

Sucralose is an artificial sweetener. The majority of ingested sucralose is not broken down by the body and therefore it is non-caloric. In the European Union, it is also known under the E number E955. Sucralose is approximately 600 times as sweet as sucrose , twice as sweet as saccharin, and 3.3...

 are also commonly added. Apple sauce is a cheap and readily available food.
Apple sauce is made by cooking down apples with water or apple cider

Apple cider

Apple cider is the name used in the United States and parts of Canada for an unfiltered, unsweetened, non-alcoholic beverage made from apples...

 (fresh apple juice) to the desired level.