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 3274 recipes in total:

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'West Indian' Mulled Wine      Origin: Fusion	Afalau Sur Bach wedi Piclo (Pickled Crabapples)      Origin: Welsh	Aliter Isicia (Another Sausage)      Origin: Roman
Étendre chocolat et noisettes (Chocolate and Hazelnut Spread)      Origin: France	Afghan Kofta Curry      Origin: Afghanistan	Aliter Isicia II (Another Sausage II)      Origin: Roman
'Ika Mata (Tokelauan Style Raw Fish)      Origin: Tokelau	Afghani Chicken Curry      Origin: Pakistan	Aliter Ius Frigidum in Aprum Elixum (Cold Sauce for Boiled Wild Boar, Another Way)      Origin: Roman
'Ika Mata (Kiribati Style Raw Fish)      Origin: Kiribati	African Chicken (Macanese One-pan Chicken Curry)      Origin: Macau	Aliter Ius in Avibus (Sauce for Birds, Another Way)      Origin: Roman
'Ika Mata (Tuvaluan Raw Fish)      Origin: Tuvalu	Afrikanisches Pistaziendessert (African-style Pistachio Dessert)      Origin: Namibia	Aliter Ius in Mugile Salso (Another Sauce for Salted Grey Mullet)      Origin: Roman
'Ika Mata (Cook Island Style Raw Fish)      Origin: Cook Islands	Aioan Chua Noeung Phset Kretni (Stir-fried Chicken with Mushrooms)      Origin: Cambodia	Aliter Ius in Murena Assa II (Sauce for Grilled Moray Eel, Another Way II)      Origin: Roman
'Ota (Raw Fish)      Origin: Tokelau	Air Fried Egg-stuffed Chestnut Mushrooms      Origin: Britain	Aliter Ius in Murena Elixa II (Another, Sauce for Poached Moray Eel II)      Origin: Roman
'Ota 'Ika (Niuean Raw Fish)      Origin: Niue	Air Fryer Blackberry-topped Almond Sponge with Blackberry Compote      Origin: Britain	Aliter Sphondylos VI (Parsnips, Another Way VI)      Origin: Roman
'Ota 'Ika (Tongan Raw Fish)      Origin: Tonga	Air Fryer Carrot Cake      Origin: Britain	Alleppey Fish Curry      Origin: India
A Cornish Cake      Origin: Cornwall	Air Fryer Carrot, Almond and Pine Nut Cake      Origin: Britain	Almond Amaretto Cheesecake      Origin: American
A Messe of Greens      Origin: Britain	Air Fryer Green Banana Plantain Chips      Origin: Fusion	Almond and Lavender Biscuits      Origin: Britain
A Potage of Roysons (A Pudding of Raisins)      Origin: England	Air Fryer Meat-stuffed Mushrooms      Origin: Britain	Almond and Orange Cake      Origin: Scotland
Aam Kulfi (Mango Ice Cream)      Origin: India	Air Fryer Quick Christmas Cake      Origin: Britain	Almond Biscotti      Origin: Italy
Abacate Recheado com Atum (Avocado Stuffed with Tuna)      Origin: Guinea-Bissau	Air Fryer Sausage Rolls      Origin: Britain	Almond Christmas Biscuits      Origin: Britain
Abura-miso      Origin: Japan	Ajo Blanco (White Garlic Sauce)      Origin: Spain	Almond Cream      Origin: Britain
Acacia Seed Brownies      Origin: Australia	Akoho sy Voanio (Chicken in Coconut Milk)      Origin: Madagascar	Almond Cupcakes with Candied Borage Flowers      Origin: Britain
Accra Banana Peanut Cake      Origin: Ghana	Akutekarsh (Chicken with Nut Sauce)      Origin: Abkhazia	Almond Ice Cream      Origin: British
Acelgas con Jamón (Ham with Chard)      Origin: Spain	Akwadu (Baked Bananas with Lemon Juice and Coconut)      Origin: Equatorial Guinea	Almond Jelly in Ginger Sauce      Origin: China
Achapa (Walnut Lobio)      Origin: Abkhazia	Alaisa fa'apopo (Samoan Coconut Rice)      Origin: Samoa	Almond Katli with Pistachios      Origin: India
Acorn and Hazelnut Pap      Origin: Ancient	Alaisa fa'apopo (Samoan Coconut Rice)      Origin: American Samoa	Almond Mousse Cheesecake      Origin: American
Acorn Cakes      Origin: Britain	Alfajores Paraguayos      Origin: Paraguay	Almond Mylk (Almond Milk)      Origin: England
Acorn Coffee      Origin: Ancient	Alfajores Rellenos de Arequipe y Coco (Alfajores with Arequipe and Coconut Filling)      Origin: Bolivia	Almond Nougat      Origin: Britain
Acorn Coffee      Origin: Britain	Alfajores Uruguayos      Origin: Uruguay	Aloko      Origin: Cote dIvoire
Acorn Flour      Origin: Britain	Aliter Avem (Birds, Another Way)      Origin: Roman	Aloo Badun (Potato Badun)      Origin: Sri Lanka
Acorn Flour Biscuits      Origin: American	Aliter Coliclos V (Stalks, Another Way, V)      Origin: Roman	Aloo Bhaji      Origin: India
Acorn Flour Pancakes      Origin: Britain	Aliter Conchiclam Sic Facies (Legumes, Another Way, Are Made Thus)      Origin: Roman	Alu Kesel (Sri Lankan Ash Plantain Curry)      Origin: Sri Lanka
Acorn Flour Tagliatelle      Origin: Italy	Aliter Dulcia (Another Kind of Dessert)      Origin: Roman	Amaretti Orestano      Origin: Italy
Acorn Pan Bread      Origin: Ancient	Aliter Dulcia III (Another Sweet III)      Origin: Roman	Amaretto Cheesecake II      Origin: American
Acorn Tortillas      Origin: American	Aliter Fabaciae (Green Beans, Another Way)      Origin: Roman	Amaretto Cheesecake with Apricot Glaze      Origin: Britain
Açucarinhas (Coconut and Sugar Biscuits)      Origin: Sao Tome	Aliter Gruem vel Anatem (Crane or Duck, Another Way)      Origin: Roman	Amaretto Cheesecake with Raspberry Sauce      Origin: Britain
Ad Aves Hircosas Omni Genere (How to Prepare 'High' Birds of Any Kind)      Origin: Roman	Aliter In Aprum Assum Iura Ferventia Facies Sic (Hot Sauce for Roast Wild Boar, Another Way)      Origin: Roman	Amaretto Hazelnut Macaroon Cheesecake      Origin: Britain
Adjika (Paprika Sauce)      Origin: Abkhazia	Aliter in Gruem vel Anatem Elixam (Sauce for Boiled Crane or Duck, Another Way)      Origin: Roman	Ambrevades au Curry (Pigeon Pea and Coconut Curry)      Origin: Comoros
Adobo Marinade      Origin: Puerto Rico	Aliter in Locusta (Another Sauce for Lobster)      Origin: Roman
Adobong Pato a la Moja (Duck Adobo with Pineapple and Dates)      Origin: Philippines	Aliter in Vitulina Elixa (Sauce for Boiled Veal, Another Way)      Origin: Roman

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