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 4134 recipes in total:

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Sweetbread Croquettes      Origin: British	Tanzanian Pineapple Salad      Origin: Tanzania	Teisen Frau Gellyg Ffres a Mascarpone (Fresh Pear and Mascarpone Shortcake)      Origin: Welsh
Swffle Bara Lawr (Laverbread Soufflé)      Origin: Welsh	Tanzanian Plantain Curry      Origin: Tanzania	Teisen Frau Noswaith Lawen (Pan-fried Parsnips and Mushrooms with a Garlic and Parsley Crust)      Origin: Welsh
Swiss-style Muesli      Origin: Switzerland	Tapado (Seafood Soup)      Origin: Guatemala	Teisen Fyrbryd Llus ac Almonau (Bilberry, and Almond Snacking Cake)      Origin: Welsh
Syrian Baharat      Origin: Syria	Tapioca      Origin: Nigeria	Teisen Gaws Pice ar y Maen Pob (Baked Welshcake Cheesecake)      Origin: Welsh
Syrip for a Capon or Faysant (Sauce for Capon or Pheasant)      Origin: England	Taramasalata      Origin: Greece	Teisen Lap: Ail Ffordd (Teisen Lap: Method 2)      Origin: Welsh
Szechuan Fried Aubergine      Origin: China	Taro aux Fruits de Mer (Taro with Seafood)      Origin: Cote dIvoire	Teisen Lap: Ffordd Gyntaf (Teisen Lap: Method 1)      Origin: Welsh
Szechuan-style Pork and Pepper      Origin: China	Taro Leaf Stew      Origin: Pitcairn Islands	Teisen Nadolig Wen (White Christmas Cake)      Origin: Welsh
S’Aranzada (Sardinian candied orange and almond balls)      Origin: Italy	Taro Poi      Origin: Tuvalu	Teisen Reis (Boiled Rice Cake)      Origin: Welsh
Tabah Moostafah (Tagine of Marrakech Lamb)      Origin: Morocco	Taro Pudding      Origin: Tuvalu	Teisen Sbeis Eirin a Chnau (Spiced Plum and Nut Cake)      Origin: Welsh (Patagonia)
Taco-topped Cupcakes      Origin: America	Tarragon and Beech Mast Vinaigrette      Origin: Britain	Teisen Simnel (Simnel Cake)      Origin: Welsh
Tadjine Zdef (Mutton and Cheese Tagine)      Origin: Benin	Tart de ffruyte (A Fruit Pie)      Origin: England	Teisen y Cynhaeaf (Harvest Cake)      Origin: Welsh
Tafell Fricyll a Cheirch (Apricot and Oat Slice)      Origin: Welsh	Tarte à la Bouillie (Burnt Milk Tart)      Origin: Senegal	Teisennu Briwsionu Cyffug Mêl Penfro (Pembrokeshire honey fudge crumblies)      Origin: Welsh
Tagine Almaaz bil Beleh (Goat Tagine with Dates)      Origin: Morocco	Tarte à la crème de noix de coco (Coconut Cream Pie)      Origin: Tahiti	Tel Kadayıf (Kadaif Dessert)      Origin: Turkey
Tagine bel Ghamli wal Barkouk wa Geijlane (Lamb Tagine with Prunes and Sesame Seeds)      Origin: Morocco	Tarte au Flan      Origin: Belgium	Tempting Trifle Cheesecake      Origin: Britain
Tagine Lahm bil Beleh (Lamb Tagine with Dates)      Origin: Morocco	Tarte au Rumex Alpin (Alpine Dock Tart)      Origin: Switzerland	Terrine Hwyaden, Porc a Mafon (Duck, Pork and Raspberry Terrine)      Origin: Welsh
Tagine of Lamb with Pumpkin      Origin: North Africa	Tarte noix de Coco (Coconut Tart)      Origin: Saint-Martin	Terrine Mauritanienne (Mauritanian Terrine)      Origin: Mauritania
Tahin (Coconut Candy)      Origin: Tahiti	Tarten Afal a Chaws (Apple and Cheese Tart)      Origin: Welsh	Terrine Verte (Wild Greens Terrine)      Origin: Switzerland
Tahitian Fish      Origin: Norfolk Island	Tarten Bricyll a Mafon (Apricot and Raspberry Tart)      Origin: Welsh	Terung Saus Santan (Fried Aubergines with Coconut Milk)      Origin: Papua
Tähroro (Fermented Coconut Sauce)      Origin: Rotuma	Tarten Ceirios (Cherry Tart)      Origin: Welsh	Thai Chicken and Burdock Curry      Origin: Fusion
Tai Monomono (Fermented Coconut Sauce)      Origin: Cook Islands	Tarten Eirin (Plum Tart)      Origin: Welsh	Thai Chicken Soup with Ginger and Lime      Origin: Thailand
Taioro      Origin: Tahiti	Tarten Eirin Mair (Gooseberry Tart)      Origin: Welsh	Thai Chilli Ice Cream      Origin: Fusion
Tajine de chameau aux abricots secs (Camel tagine with dried apricots)      Origin: Mali	Tarten Gwreiddlysiau wedi'i Charameleiddio (Caramelised Root Vegetable Tart)      Origin: Welsh	Thai Chilli Sorbet      Origin: Fusion
Tajine de Poulet au Miel et Abricots (Chicken Tagine with Honey and Apricots)      Origin: Morocco	Tarten Llus (Bilberry Tart)      Origin: Welsh	Thai Coconut and Rainbow-Pepper Chicken Soup      Origin: Thailand
Tajine de Poulet aux Dattes (Tagine of Chicken with Dates)      Origin: Morocco	Tarten Rhiwbob a Mafon (Rhubarb and Raspberry Tart)      Origin: Welsh	Thai Crab and Sea-blite Curry      Origin: Thailand
Takihi      Origin: Niue	Tartlettes/Tartletes (Tartlets)      Origin: England	Thai Green Curried Cod      Origin: Fusion
Talautu (Coconut and Pineapple Dessert)      Origin: Papua New Guinea	Tartys Choklet (Chocolate Tarts)      Origin: England	Thai Green Curried Dandelion Roots and Chicken      Origin: Malaysia
Tam Som (Lao Green Papaya Salad)      Origin: Laos	Tausug Beef Kulma      Origin: Philippines	Thai Green Curry of Prawn and Fish      Origin: Thailand
Tamil Nadu Meat Curry Powder      Origin: India	Tea-room Coconut Toast      Origin: American	Thai Green Curry Paste      Origin: Thailand
Tamina (Semolina Dessert)      Origin: Niger	Teisen Borc (Welsh Pork Cake)      Origin: Welsh	Thai Green Curry with Chicken of the Woods      Origin: Britain
Tandoori Chicken      Origin: India	Teisen Ceulfwyd Bro Gŵyr (Gower Peninsula Dowset)      Origin: Welsh	Thai Hake Bites      Origin: South Africa
Tandoori Masala      Origin: India	Teisen Cnau a Ffrwythau (Fruit and Nut Cake)      Origin: Welsh	Thai Mango Fish Curry      Origin: Thailand
Tankora Powder      Origin: Ghana	Teisen Ddu (Black Cake)      Origin: Welsh	Thai Peanut Coconut Curry with Pheasant and Squash      Origin: Fusion
Tannia and Pineapple Fritters      Origin: Saint Kitts	Teisen Ddu Nadolig (Black Christmas Cake)      Origin: Welsh
Tanzanian Coconut Bean Soup      Origin: Tanzania	Teisen Fferm (Farmhouse Cake)      Origin: Welsh

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