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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Boo Sauce (Ugandan Cowpea Leaves with Peanut Butter)      Origin: Uganda	Brewet of Almayn (Bruet of Almonds)      Origin: England	Burundian Isombe (Cassava Leaf Stew)      Origin: Burundi
Boo with Okra      Origin: Uganda	Bricher Muesli      Origin: Switzerland	Bury Simnel Cake      Origin: England
Boondi Laddu      Origin: India	Bricyll wedi Piclo (Pickled Apricots)      Origin: Welsh	Bushmeat Skewers with Cashew Nut Satay      Origin: Namibia
Botellum (Small Black Puddings)      Origin: Roman	Brined and Braaied Christmas Turkey      Origin: South Africa	Buttered Brazils      Origin: British
Botokin (Togolese Doughnuts)      Origin: Togo	Brithyll gyda Almonau (Trout with Almonds)      Origin: Welsh	Buttered Colle-floure (Buttered Cauliflower)      Origin: Britain
Botswanan Chicken Groundnut Stew      Origin: Botswana	Brithyll Mewn Crwst Cnau Cyll â Pherlysiau (Trout in a Hazelnut Crust with Herbs)      Origin: Welsh	Buttered Crab      Origin: England
Bottle Masala      Origin: India	British Pumpkin Pie      Origin: British	Buttermilk Baking Mix      Origin: America
Bottle Masala Meatball Curry      Origin: India	Briwfwyd (Mincemeat)      Origin: Welsh	Butternut Squash and Feta Cheese Pizza      Origin: British
Bottom Belleh (Sierra Leonean Deep Fried Fish Pasties)      Origin: Sierra Leone	Briwfwyd â Brandi (Brandy Mincemeat)      Origin: Welsh	Butternut Squash and Pea Risotto      Origin: Britain
Boudin de Pescado (Fish Pudding)      Origin: Spain	Briwfwyd Nadolig (Christmas Mincemeat)      Origin: Welsh	Buttery Herbed Couscous      Origin: Fusion
Bougna      Origin: New Caledonia	Broas de Mel (Madeira Molasses Biscuits)      Origin: Portugal	Buttery King Cake      Origin: Cajun
Bougna      Origin: Wallis Futuna	Brochettes de Poulet Mariné aux Arachides (Marinated Chicken Skewers with Peanuts)      Origin: Mali	Cà Ri Gá (Chicken Curry)      Origin: Vietnam
Boules de Bananes (Banana Fritters)      Origin: Guinea	Brown Caper Sauce      Origin: British	Cà Ri Gà (Vietnamese Chicken Curry)      Origin: Vietnam
Boulettes de viande à l'indienne (Indian-style Meatballs)      Origin: France	Brown Matelotte Sauce      Origin: British	Caadriyad (Vermicelli and Raisins)      Origin: Somalia
Boulgour aux Fruits Secs (Bulgur Wheat with Dried Fruit)      Origin: Mauritania	Bruet Sarcenes (Saracen Brewet)      Origin: England	Caakiri      Origin: West Africa
Bourbon Pumpkin Cheesecake      Origin: America	Brunei Satay      Origin: Brunei	Cabbage Kootu (Cabbage in Coconut Milk Gravy)      Origin: Malaysia
Bourkakia me Tiri (Cheese Rolls)      Origin: Greece	Brunsli (Swiss Brownies)      Origin: Switzerland	Caca boeuf (Beef Patties)      Origin: Guadeloupe
Boxemännercher (Gingerbread Men)      Origin: Luxembourg	Brussels Sprouts with Chestnuts      Origin: British	Cacen Ddathlu Tŷ Fferm (Farmhouse Celebration Cake)      Origin: Welsh
Braaied Giant Wild Prawns with Peanuts and Coconut      Origin: South Africa	Bryndons      Origin: England	Cacen De Cymreig (Welsh Tea Cakes)      Origin: Welsh
Brambrack      Origin: Ireland	Bu'oy ni im (Polynesian Chestnut Cake)      Origin: Federated States Micronesia	Cacen Ffenestr Rhosyn a Phistasio (Rose and Pistachio Battenberg)      Origin: Welsh
Brandy Truffles      Origin: British	Bua Loy (Pumpkin Sticky Rice Balls in Coconut Milk)      Origin: Thailand	Cacen Ffwr a Hi (Quick Bara Brith)      Origin: Welsh
Braune Kuchen (Brown Biscuits)      Origin: Germany	Buatoro (Baked Taro Cake)      Origin: Kiribati	Cacen Foron Gydag Eisin Oren (Carrot Cake with Orange Icing)      Origin: Welsh
Bread and Butter Pudding      Origin: British	Buatoro 1      Origin: Kiribati	Cacen Furum Nadolig (Yeasty Christmas Cake)      Origin: Welsh
Bread and Butter Pudding II      Origin: British	Bubur Ketan Hitam (Black Rice Pudding)      Origin: Brunei	Cacen Gneifio (Shearing Cake)      Origin: Welsh
Breaded Chicken of the Woods with Wild Garlic and Walnut Mayonnaise      Origin: Germany	Bubur Pulut Hitam (Malay Black Glutinous Rice Porridge)      Origin: Fusion	Cacen Gwaedoren Dydd Gwyl Dwynwen (Blood Orange Cake for St Dwynwen's Day)      Origin: Welsh
Breadfruit and Saltfish Bread      Origin: Saint Vincent	Buckwheat Štruklji with Walnut Filling      Origin: Slovenia	Cacen Nadolig Mam (Mam's Christmas Cake)      Origin: Welsh
Breadfruit Curry      Origin: India	Budget Christmas Pudding      Origin: British	Cacen Siocled Pasg (Easter Chocolate Cake)      Origin: Welsh
Breadfruit Poi      Origin: Tuvalu	Bufuke with Onion Sauce      Origin: Uganda	Cacen y Mans (Manse Cake)      Origin: Welsh
Breadfruit Puffs      Origin: Saba	Bukkeande      Origin: England	Cajun Fig and Pecan Pie      Origin: Cajun
Breadfruit Puffs      Origin: Dominica	Bumbu Kuning (Base Indonesian Yellow Spice Paste)      Origin: Indonesia	Cake Pops      Origin: Britain
Breadfruit Puffs      Origin: Guadeloupe	Bund Gobi aur Narial (Coconut Cabbage)      Origin: India	Calalou (Beninese Callaloo)      Origin: Benin
Breadfruit Puffs      Origin: Martinique	Burundi Beans and Plantains      Origin: Burundi	Caldo de Chabéu (Palm Nut Stew)      Origin: Guinea-Bissau
Breadfruit with Coconut Milk      Origin: Hawaii	Burundian Bean Soup      Origin: Burundi
Brenneslekake (Norwgian Nettle and Honey Cake)      Origin: Norway	Burundian Beef and Greens in Peanut Sauce      Origin: Burundi

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