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 3559 recipes in total:

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Coconut Crab in Coconut Milk      Origin: Pitcairn Islands	Coconut, Red Beans and Rice      Origin: Anguilla	Cornish Black Cake      Origin: England
Coconut Cream      Origin: India	Coconut-crusted Fish      Origin: Nauru	Cornish Carrot Cake      Origin: England
Coconut Crust      Origin: Belize	Coconut-crusted Shrimp      Origin: Nauru	Cornish Chicken Curry      Origin: England
Coconut Curry      Origin: Seychelles	Cocos Islands Sago Pudding      Origin: Cocos Islands	Cornish Clotted Cream Rice Pudding      Origin: England
Coconut Curry Chicken With Roti      Origin: Antigua	Cocos Islands Turmeric Rice      Origin: Cocos Islands	Cornish Junket      Origin: Britain
Coconut Curry Fish      Origin: Nauru	Cocos Potiedig (Potted Cockles)      Origin: Welsh	Cornish Nettle Soup      Origin: England
Coconut Curry Prawns With Plantains      Origin: Antigua	Cocquito      Origin: Puerto Rico	Cornish Pig's Head Pudding      Origin: England
Coconut Curry Salmon      Origin: Fusion	Čokoládové lanýže (Czech Chocolate Truffles)      Origin: Czech	Cornish Pollack Curry      Origin: England
Coconut Custard Tart with Roast Pineapple      Origin: South Africa	Colcannon      Origin: Ireland	Cornish Rock Cakes      Origin: England
Coconut Drops      Origin: Saint Kitts	Colcannon Soup      Origin: Ireland	Cornish Saffron Cake      Origin: England
Coconut Fish      Origin: Nauru	Cold Bruet (Cold Brewet)      Origin: England	Cornish Salt Pork      Origin: England
Coconut Fish Curry      Origin: Fusion	Collumella's Moretum      Origin: Roman	Cornish Sole Curry with Cauliflower Rice      Origin: England
Coconut Fish Curry II      Origin: Fusion	Colomba Pasquale (Easter Dove)      Origin: Italy	Cornish Store Cake      Origin: England
Coconut Ice      Origin: British	Colombo d'Agneau à la Mauricienne (Mauritian-style Colombo of Lamb)      Origin: Mauritius	Cornish Tea Biscuits      Origin: England
Coconut Ice Cream      Origin: Philippines	Colombo de Martinique      Origin: Martinique	Cornish Tea Treat Buns      Origin: England
Coconut Latiya      Origin: Guam	Colourful Vegetarian Kebabs      Origin: Britain	Cornish Wine Cake      Origin: England
Coconut Lime Chicken Curry      Origin: Cayman Islands	Comadore (Fruit Pie Delicacies)      Origin: England	Cornmeal Porridge      Origin: Jamaica
Coconut Lobster      Origin: Britain	Comorian Coconut Curry Chicken      Origin: Comoros	Cornulete Vanilate (Romanian Walnut Crescents)      Origin: Romania
Coconut Macaroons      Origin: Britain	Comorian Pilaou      Origin: Comoros	Cotagrys (Cockatrice)      Origin: England
Coconut Milk      Origin: Africa	Compota de Uvas con Crujiente de Boniato (Grape Compote with Crispy Sweet Potato)      Origin: Spain	Country Pork Terrine      Origin: England
Coconut Mousse      Origin: Nauru	Conch Curry Coconut Banana Chowder      Origin: Aruba	Courges avec des arachides (Squash with Peanuts)      Origin: Gabon
Coconut Peas      Origin: Rwanda	Concombre cuit à l'indienne (Indian-style Cooked Cucumber)      Origin: France	Courgette Charlotte with Veal Sweetbreads and Ceps      Origin: Andorra
Coconut Pineapple Muffins (Coconut Pineapple Muffins)      Origin: Britain	Confiture de Coco (Coconut Jam)      Origin: Martinique	Couscouma      Origin: Comoros
Coconut Pitha      Origin: Anglo-Indian	Confiture de Coco (Coconut Jam)      Origin: Saint Barthelemy	Couscous de Timbuktu      Origin: Mali
Coconut Rice      Origin: Cocos Islands	Congrejo al Coco (Coconut Crab)      Origin: Ecuador	Couscous with Dried Fruit, Nuts and Cinnamon      Origin: Morocco
Coconut Rice      Origin: Christmas Island	Conkies      Origin: Bahamas	Cowl Bysk (Bisque Broth)      Origin: England
Coconut Rough Cake      Origin: Dominica	Conkies      Origin: Guyana	Cozonac (Romanian Sweet Bread)      Origin: Romania
Coconut Rum Bread Pudding      Origin: Saint Kitts	Connates      Origin: England	Crâme Glacée au Beurre d'Arachide (Peanut Butter Ice Cream)      Origin: Senegal
Coconut Shrimp      Origin: Aruba	Contrichop      Origin: Equatorial Guinea	Crème de Corossol (Soursop Cream)      Origin: Senegal
Coconut Tapioca Pudding      Origin: Tuvalu	Conynges in Gravey (Rabbits in Gravy)      Origin: England	Crème de Corossol Glacée (Soursop Cream Ice Cream)      Origin: Senegal
Coconut Tart      Origin: US Virgin Islands	Coorg Chicken Masala      Origin: India	Crêpes aux myrtilles (Bilberry Crêpes)      Origin: France
Coconut Tart      Origin: Bonaire	Copycat Duncan Hines White Cake      Origin: American	Crab Fried Rice      Origin: China
Coconut, Banana and Chocolate Mini Muffins (Coconut, Banana and Chocolate Mini Muffins)      Origin: Britain	Corn and Chicken Soup      Origin: China
Coconut, Cassava and Papaya Pudding      Origin: Federated States Micronesia	Corn and Rice Bread      Origin: Angola

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