Most seeds come from fruit that naturally free themselves from the shell, but this is not the case in nuts such as hazelnuts, chestnuts, and acorns, which have hard shell walls and originate from a compound ovary. The general and original usage of the term is less restrictive, and many nuts (in the culinary sense), such as almonds, pistachios, and Brazil nuts, are not nuts in a botanical sense. Common usage of the term often refers to any hard-walled, edible kernel as a nut. Nuts are an energy-dense and nutrient-rich food source.

Botanically, a nut is a fruit with a woody pericarp developing from a syncarpous gynoecium. True nuts include, for example, chestnut, hazelnut and filbert. Culinarily, the term 'nut' is used much more widely, and includes examples of drupes (such as pecans and almonds) or seeds (such as pine nuts and peanuts).

Also widely known as nuts are dry drupes, which include pecans, almonds, macadamia (Macadamia integrifolia), candlenut (Aleurites moluccanus) and the water caltrop (Trapa bicornis). A drupe is an indehiscent fruit that has an outer fleshy part consisting of the exocarp, or skin, and mesocarp, or flesh, which surround a single pit or stone, the endocarp with a seed (kernel) inside. In a dry drupe, the outer parts dry up and the remaining husk is part of the ovary wall or pericarp, and the hard inner wall surrounding the seed represents the inner part of the pericarp.

Walnuts and hickories (Juglandaceae) have fruit that are difficult to classify. They are considered to be nuts under some definitions but are also referred to as drupaceous nuts.

In common use, a "tree nut" is, as the name implies, any nut coming from a tree. This most often comes up regarding food allergies; a person may be allergic specifically to peanuts (which are not tree nuts but legumes), whereas others may be allergic to the wider range of nuts that grow on trees.

The sweet potato arrived in Europe with the Columbian exchange. It is recorded, for example, in Elinor Fettiplace's Receipt Book, compiled in England in 1604.

Nuts are eaten by humans and wildlife. Because nuts generally have a high oil content, they are a significant energy source. Many seeds are edible by humans and used in cooking, eaten raw, sprouted, or roasted as a snack food, ground to make nut butters, or pressed for oil that is used in cooking and cosmetics.

Nuts used for food are a common source of food allergens. Reactions can range from mild symptoms to severe ones, a condition known as anaphylaxis, which can be life-threatening. The reaction is due to the release of histamine by the body in response to an allergen in the nuts, causing skin and other possible reactions. Many experts suggest that a person with an allergy to peanuts should avoid eating tree nuts, and vice versa.

The nuts linked to from this page are: acorn; almond; beech nuts; betel nut; brazil nut; bush mango; filbert; ginkgo nut; kola nut; candlenut; cashew; chestnut; coconut; hazelnut; macadamia; ogbono; palm nut; peanut; pecan; pine nut; pistachio; walnut.

The alphabetical list of all the nut-based recipes on this site follows, (limited to 100 recipes per page). There are 2802 recipes in total:

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Chykenes in Grauey (Chickens in Gravy)      Origin: England	Coconut Chutney      Origin: India	Colombo d'Agneau à la Mauricienne (Mauritian-style Colombo of Lamb)      Origin: Mauritius
Chykenes in Gravey (Chicken in Gravy)      Origin: England	Coconut Collard Greens      Origin: Puerto Rico	Colombo de Martinique      Origin: Martinique
Chyryse      Origin: England	Coconut Cream      Origin: India	Colourful Vegetarian Kebabs      Origin: Britain
Chysanne (A Dish to be Eaten Cold)      Origin: England	Coconut Crust      Origin: Belize	Comadore (Fruit Pie Delicacies)      Origin: England
Cinnamon Spiced Jollof Rice      Origin: Sierra Leone	Coconut Curry      Origin: Seychelles	Comorian Coconut Curry Chicken      Origin: Comoros
Cinnamon Stars      Origin: British	Coconut Curry Chicken With Roti      Origin: Antigua	Comorian Pilaou      Origin: Comoros
Cinq Centimes (Five-cent Biscuit)      Origin: Senegal	Coconut Curry Prawns With Plantains      Origin: Antigua	Compota de Uvas con Crujiente de Boniato (Grape Compote with Crispy Sweet Potato)      Origin: Spain
Citrusy Ripe Breadfruit Cake      Origin: Saint Lucia	Coconut Curry Salmon      Origin: Fusion	Conch Curry Coconut Banana Chowder      Origin: Aruba
Clafoutis aux Fleurs Sauvages (Wildflower Clafouti)      Origin: France	Coconut Drops      Origin: Saint Kitts	Concombre cuit à l’indienne (Indian-style Cooked Cucumber)      Origin: France
Clapshot      Origin: Scotland	Coconut Fish Curry      Origin: Fusion	Confiture de Coco (Coconut Jam)      Origin: Martinique
Classic Rice Pudding      Origin: Britain	Coconut Fish Curry II      Origin: Fusion	Confiture de Coco (Coconut Jam)      Origin: Saint Barthelemy
Clementine Cake      Origin: Britain	Coconut Latiya      Origin: Guam	Congrejo al Coco (Coconut Crab)      Origin: Ecuador
Clitocybe Odora Fritta (Fried, Breaded, Aniseed Toadstool)      Origin: Italy	Coconut Lime Chicken Curry      Origin: Cayman Islands	Conkies      Origin: Bahamas
Clotted Cream Splits      Origin: England	Coconut Lobster      Origin: Britain	Conkies      Origin: Guyana
Cobnut Fairy Cakes      Origin: British	Coconut Macaroons      Origin: Britain	Connates      Origin: England
Cobnut Stuffing      Origin: Britain	Coconut Milk      Origin: Africa	Contrichop      Origin: Equatorial Guinea
Cobnut Stuffing for Goose      Origin: Britain	Coconut Peas      Origin: Rwanda	Conynges in Gravey (Rabbits in Gravy)      Origin: England
Coca de San Juan (St James Cake)      Origin: Spain	Coconut Pineapple Muffins (Coconut Pineapple Muffins)      Origin: Britain	Coorg Chicken Masala      Origin: India
Coca Mallorquina (Spanish Pizza)      Origin: Spain	Coconut Pitha      Origin: Anglo-Indian	Copycat Duncan Hines White Cake      Origin: American
Cocadas (Coconut Bars)      Origin: Ecuador	Coconut Rough Cake      Origin: Dominica	Corn and Chicken Soup      Origin: China
Cocktail de Crevettes (Senegalese Prawn Cocktail)      Origin: Senegal	Coconut Rum Bread Pudding      Origin: Saint Kitts	Corn and Rice Bread      Origin: Angola
Cocoa Cobnuts      Origin: Britain	Coconut Shrimp      Origin: Aruba	Cornish Black Cake      Origin: England
Cocoa Nib Curried King Prawns      Origin: American	Coconut Tart      Origin: US Virgin Islands	Cornish Carrot Cake      Origin: England
Cocoa Pistachio Pinwheels      Origin: American	Coconut Tart      Origin: Bonaire	Cornish Chicken Curry      Origin: England
Cocoda (Aruban Coconut Candy)      Origin: Aruba	Coconut, Banana and Chocolate Mini Muffins (Coconut, Banana and Chocolate Mini Muffins)      Origin: Britain	Cornish Clotted Cream Rice Pudding      Origin: England
Coconetes (Dominican Rustic Coconut Biscuits)      Origin: Dominica	Coconut, Red Beans and Rice      Origin: Anguilla	Cornish Junket      Origin: Britain
Coconut and Mango Cheesecake      Origin: Britain	Cocos Potiedig (Potted Cockles)      Origin: Welsh	Cornish Nettle Soup      Origin: England
Coconut and Maraschino Cherry Cake      Origin: Britain	Cocquito      Origin: Puerto Rico	Cornish Pig's Head Pudding      Origin: England
Coconut Bean Rice      Origin: Nigeria	Čokoládové lanýže (Czech Chocolate Truffles)      Origin: Czech	Cornish Pollack Curry      Origin: England
Coconut Bread Pudding      Origin: St Helena	Colcannon      Origin: Ireland	Cornish Rock Cakes      Origin: England
Coconut Candy      Origin: Liberia	Colcannon Soup      Origin: Ireland	Cornish Saffron Cake      Origin: England
Coconut Chickpea Curry with Spinach      Origin: Britain	Cold Bruet (Cold Brewet)      Origin: England	Cornish Salt Pork      Origin: England
Coconut Chickpea Dumpling Curry      Origin: Britain	Collumella's Moretum      Origin: Roman
Coconut Chocolate Cheesecake      Origin: American	Colomba Pasquale (Easter Dove)      Origin: Italy

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