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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Ceebu Jën (Rice and Fish)      Origin: Senegal	Chestnut Flour Bread      Origin: France	Chicken Kali Mirch (Black Pepper Chicken Curry)      Origin: India
Celebration Pudding      Origin: British	Chestnut Flour Cake      Origin: British	Chicken Kelaugen      Origin: Guam
Celebration Soup      Origin: Japan	Chestnut Flour Noodles      Origin: Fusion	Chicken Kelaugen      Origin: Northern Mariana Islands
Celery Sauce      Origin: British	Chestnut Flour Pancakes      Origin: Britain	Chicken Korma      Origin: India
Celtic Pork and Apple Stew      Origin: Ancient	Chestnut Flour Waffles      Origin: Britain	Chicken Kottu Roti      Origin: Sri Lanka
Cepelinai (Lithuanian Meat-filled Potato Dumplings)      Origin: Lithuania	Chestnut Fool      Origin: Britain	Chicken Liver and Raisin Pâté      Origin: South Africa
Chabéu de Tainha (Palm Soup of Mullet)      Origin: Guinea-Bissau	Chestnut Ice Cream      Origin: Britain	Chicken Mappas      Origin: India
Chakalaka      Origin: South Africa	Chestnut Lasagne      Origin: Britain	Chicken Micronesia      Origin: Federated States Micronesia
Chakri      Origin: Gambia	Chestnut Sauce for Turkey      Origin: Britain	Chicken Satay      Origin: Fusion
Chamorro Flour Titiyas      Origin: Northern Mariana Islands	Chestnut Stuffing      Origin: Britain	Chicken Seychelles      Origin: Seychelles
Chamorro Flour Titiyas      Origin: Guam	Chestnut Torte      Origin: Germany	Chicken Tagine with Honey and Apricots      Origin: Morocco
Chana Chaat (Chickpea Chaat)      Origin: India	Chevra      Origin: South Africa	Chicken Tikka Biryani      Origin: India
Chanterelle and Shiitake Black Bean Chili with Sour Cherries      Origin: American	Chevrettes à la vanille et coco (Prawns in a coconut-vanilla sauce)      Origin: Tahiti	Chicken White Curry      Origin: Sri Lanka
Charoset      Origin: Morocco	Chewetts on fysche day (Chewetts for Fish Days)      Origin: England	Chicken with Cashew Nuts      Origin: China
Chastletes (Little Castles)      Origin: England	Chibwabwa (Greens, Vegetable and Peanut Butter Stew)      Origin: Zambia	Chicken with Spices and Soy Sauce      Origin: Malaysia
Cheat's Sachertorte      Origin: Britain	Chicken and Leek Pie      Origin: Ireland	Chickennat      Origin: Uganda
Cheese Baklava      Origin: Syria	Chicken and Peanut Thai Curry      Origin: Thailand	Chickweed Salad      Origin: Britain
Cheese Fruit Log      Origin: Britain	Chicken and Pumpkin Laksa      Origin: Fusion	Chifles (Plantain Chips)      Origin: Ecuador
Cheese Paska      Origin: Ukraine	Chicken and Wild Food Stir-fry      Origin: Fusion	Chiles En Nogada (Stuffed Chillies in White Sauce)      Origin: Mexico
Cheesecake Germania      Origin: Germany	Chicken Balti      Origin: Britain	Chima de Arroz (Chima Rice)      Origin: Mozambique
Cheesecake Pecan Pie      Origin: American	Chicken Balti      Origin: Britain	Chin Baung Kaw (Fried Roselle Leaves)      Origin: Myanmar
Chelsea Bun (Recipe 2)      Origin: Britain	Chicken Balti      Origin: Britain	Chin Baung Kyaw (Fried Roselle Leaves)      Origin: Myanmar
Chemmeen Manga Curry (Prawn and Mango Curry)      Origin: India	Chicken Biryani      Origin: Britain	Chinchin Camerounaise (Cameroonian Chinchin)      Origin: Cameroon
Chemmen Roast (Kerala Prawn Roast)      Origin: India	Chicken Boileen      Origin: Saint Vincent	Chinese Almond Cookies      Origin: China
Cherry and Bird Cherry Flour Muffins      Origin: American	Chicken Bonnie Prince Charlie      Origin: Scotland	Chinese Chilli and Garlic Paste      Origin: China
Cherry and Curly Dock Seed Flour Muffins      Origin: American	Chicken Ceylon Curry      Origin: Britain	Chinese Crispy Duck      Origin: China
Cherry Nut Easter Eggs      Origin: American	Chicken Chaap      Origin: India	Chinese Curried Chicken with Peppers      Origin: China
Cherry Shortbread Heart Biscuits      Origin: Britain	Chicken Chettinad      Origin: India	Chinese Five-spice Spare Ribs      Origin: China
Chertha kozhi kari (Chicken and Cashew Nut Curry)      Origin: India	Chicken Country Captain      Origin: America	Chinese Pork and Mushroom Meatballs Soup      Origin: Fusion
Cherupayar Curry (Whole Green Lentil Curry)      Origin: India	Chicken Curry with Coconut Milk      Origin: Seychelles	Chinese Vegetable Soup      Origin: China
Cheshire Pork Pye      Origin: England	Chicken Curry with Greens      Origin: India	Chinese-style Takeaway Curry Sauce      Origin: China
Chestnut and Chocolate Torte      Origin: France	Chicken Curry with Potatoes      Origin: Malaysia	Chocnut Logs      Origin: British
Chestnut Fazzoletti      Origin: Italy	Chicken Curry with Potatoes (FChicken Curry with Potatoes)      Origin: Cocos Islands
Chestnut Flour      Origin: Britain	Chicken Curry with Potatoes      Origin: Christmas Island

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