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 4197 recipes in total:

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Mutton with Peppers and Chironji      Origin: India	Ndolé à la Viande (Bitterleaf with Meat)      Origin: Cameroon	Nigerian Pancakes with Prawns      Origin: Nigeria
My Lady of Portlandàs Mince Pyes      Origin: Britain	Ndomba de Porc (Pork Cooked in Banana Leaves)      Origin: Cameroon	Nigerian Pancakes with Suya-spiced Tofu Scramble      Origin: Nigeria
N'Dizi na Kasted (Banana Custard)      Origin: Tanzania	Ndrovi ya Nazi (Banana with Coconut Milk)      Origin: Comoros	Nigerian Peanut Fool      Origin: Nigeria
N'dolé (Bitterleaf Stew)      Origin: Cameroon	Nectarine Snacking Cake      Origin: Britain	Nigerian Pepper Soup Spices      Origin: Nigeria
N'dolé avec Poisson (Fish and Bitterleaf Stew)      Origin: Gabon	Nepalese Meat Masala      Origin: Nepal	Nigerian Spicy Scrambled Eggs      Origin: Nigeria
N'dolé avec Poulet (Chicken N'Dolé)      Origin: Cameroon	Nettle and Spinach Cake      Origin: Britain	Nigerian-style Spaghetti      Origin: Nigeria
Nèkango Karako (Home-made Peanut Paste)      Origin: Central African Republic	Nettle Gnudi      Origin: Britain	Nihari Masala      Origin: India
Naatukodi Pulusu (Country Chicken Sour Curry)      Origin: India	Nettle Greens and Peanut Stew      Origin: African Fusion	Nila Bumbu Acar (Sour Spicy Carp)      Origin: Indonesia
Nachinyonaya Forel (Stuffed Trout)      Origin: Georgia	Nettle Leaf Greens      Origin: Britain	Nilgiri Chicken Korma      Origin: India
Nadan Kozhi Curry      Origin: India	Nettle Leaf Pesto      Origin: Britain	Nimino de Peixe (Nimino of Fish)      Origin: Mozambique
Naeamia bel Dakwa      Origin: Sudan	Nettle Purée Fritters      Origin: Britain	Niter Kebbeh (Spiced Ghee)      Origin: Ethiopia
Nali Sauce (Piri-piri Sauce)      Origin: Malawi	Nettle, Squash and Almond Curry      Origin: Britain	Njahi in Coconut Sauce (Kenyan Black Beans in Coconut Sauce)      Origin: Kenya
Nam Van Sal Lee (Corn Sago Dessert Soup)      Origin: Laos	Neujahrspretzel (German New Year's Pretzels)      Origin: Germany	Njandu Curry (Kerala Crab Curry)      Origin: India
Namibischer Bananenkuchen (Namibian Banana Cake)      Origin: Namibia	Nevis Jerk Marinade      Origin: Saint Kitts	Nkatenkwan (Ghanaian Peanut Soup)      Origin: Ghana
Nan Mburu      Origin: Gambia	New Caledonian Raw Fish Salad      Origin: New Caledonia	Nnam Owondo      Origin: Cameroon
Nanaimo Bars      Origin: Canada	New Orleans Black Muffins      Origin: American	No Bake Cheesecake      Origin: Britain
Nandji      Origin: Mali	New Orleans Style Pumpkin Pie      Origin: South Africa	No Crust Easter Pie      Origin: American
Nandji de Boeuf (Nandji of Beef)      Origin: Cote dIvoire	New Zealand Beef Curry      Origin: New Zealand	No-bake Peanut Butter Flapjack      Origin: Britain
Nandji Ivorienne      Origin: Cote dIvoire	New Zealand Chicken Curry      Origin: New Zealand	Noix de Coco Caramélisée (Caramelized Coconut)      Origin: Cameroon
Nane Flor (Pig's Feet Stew)      Origin: Ghana	New Zealand Coconut Lamb Curry with Cashews      Origin: New Zealand	Nom Banh Chok      Origin: Cambodia
Nanē Pia (Niuean Porridge)      Origin: Niue	New Zealand Norfolk Fruit Chutney      Origin: New Zealand	Non-alcoholic Glögg      Origin: Sweden
Naples Bisket      Origin: Britain	Ngege with Peanut Sauce (Tilapia with Peanut Sauce)      Origin: East Africa	Noodle Curry Paste      Origin: Laos
Nasi Goreng Istimewa (Fried Rice Breakfast)      Origin: Indonesia	Ngukassa (Plantain Soup)      Origin: Central African Republic	Nori-wrapped Mochiko Chicken      Origin: Hawaii
Nasi Kuning (Yellow Rice)      Origin: Indonesia	Ngunza et Boule de Manioc (Ngunza and Cassava Balls)      Origin: Central African Republic	Nori-wrapped Mochiko Pork      Origin: Hawaii
Nasi Lemak      Origin: Malaysia	Nhangana com Coco (Cowpea Leaves with Coconuts)      Origin: Mozambique	Normandy Cheesecake      Origin: Britain
Nasi Lemak      Origin: Cocos Islands	Nhopi (Maize Meal with Pumpkin)      Origin: Zimbabwe	North Indian Garam Masala      Origin: India
Nasi Lemak      Origin: Singapore	Nhopi (Corn Meal with Pumpkin)      Origin: Zimbabwe	North-Africa Style Breast of Lamb      Origin: Fusion
Nasi Lemak      Origin: Christmas Island	Nhopi Dovi (Pumpkin with Groundnut Sauce)      Origin: Zimbabwe	Noteye (Nutty)      Origin: England
Nasturtium Leaf Pesto      Origin: Britain	Nigerian Catfish Stew      Origin: Nigeria	Nougat d'Arachide (Peanut Nougat)      Origin: Togo
Nasturtiums with Cream Cheese and Almond Filling      Origin: Britain	Nigerian Chicken Stew      Origin: Nigeria	Nougat de Montélimar      Origin: France
Nata de Coco (Coconut Water Gel)      Origin: Philippines	Nigerian Goat Stew      Origin: Nigeria	Nougat Glacé (Iced Nougat)      Origin: France
Native Jerk Seasoning      Origin: Jamaica	Nigerian Groundnut Soup      Origin: Nigeria	Nougat Traditionelle (Traditional Nougat)      Origin: France
Natural Red Tomato Chutney      Origin: Britain	Nigerian Guinea Fowl Stew      Origin: Nigeria
Ndizi na Nyama (Plantains with Meat)      Origin: East Africa	Nigerian Guineafowl Pepper Soup      Origin: Nigeria

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