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 2802 recipes in total:

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Poullaille farcie (Stuffed Poultry)      Origin: France	Pumpkin Hummus      Origin: American	Quick-as-a-Bunny Easter Egg Nests      Origin: American
Pourcelet farci (Stuffed Suckling Pig)      Origin: France	Pumpkin Pie Blintzes      Origin: American	Quince and Chestnut Crumble Cake      Origin: Britain
Prawn Balti      Origin: Britain	Pumpkin Pie Spice      Origin: American	Quizaca (Cassava Leaf Stew)      Origin: Angola
Prawn Biryani      Origin: India	Pumpkin Spice Cookies      Origin: American	Qumbe (Coconut Squares)      Origin: Somalia
Prawn Caldine      Origin: India	Pumpkin with Nilgiri Sauce      Origin: India	Rüeblitorte (Swiss Carrot Cake)      Origin: Switzerland
Prawn Pasanda      Origin: Britain	Pumpkin, Goat's Cheese and Kale Tart with Three-cornered Leeks (Pumpkin, Goat's Cheese and Kale Tart with Three-cornered Leeks)      Origin: Britain	Rad Na Moo (Pork with Noodles in Gravy)      Origin: Thailand
Prawn Powder      Origin: Anglo-Indian	Pumpkin, Goat's Cheese and Kale Tart      Origin: British	Ragi Rava Ladoo      Origin: India
Prawn, Mangetout and Cashew Nut Stir-fry      Origin: Australia	Punch Coco (Coconut Punch)      Origin: Comoros	Ragoût aux épinards (Spinach Stew)      Origin: Central African Republic
Pressure Cooker Chicken Korma      Origin: Fusion	Pur Fayte Ypocras (To Make Hippocras)      Origin: England	Ragoût de Chévre au Riz (Goat Stew with Rice)      Origin: DR-Congo
Pressure Cooker Chocolate Peanut Cheesecake      Origin: American	Purée d'Aubergines (Aubergine Purée)      Origin: Rwanda	Ragu alla Bolognese (Traditional Bolognese Sauce)      Origin: Italy
Pressure Cooker Coconut Lamb Curry      Origin: Britain	Purée d'Oseille (Hibiscus Leaf Purée)      Origin: Chad	Raj Beef Curry      Origin: Anglo-Indian
Pressure Cooker Curried Beef Stew      Origin: South Africa	Puri (Indian Balloon Bread)      Origin: India	Rangeenak (Persian Date Dessert)      Origin: Iran
Pressure Cooker Curried Squash      Origin: Fusion	Pwdin Bara (Bread Pudding)      Origin: Welsh	Ras el hanout      Origin: North Africa
Pressure Cooker Massaman Beef Curry      Origin: Britain	Pwdin Bara Marmalêd (Marmalade Bread and Butter Pudding)      Origin: Welsh	Ras Malai      Origin: India
Pressure Cooker Pumpkin Cheesecake      Origin: American	Pwdin Bara Menyn (Bread and Butter Pudding)      Origin: Welsh	Rasabali      Origin: India
Pressure Cooker Thai Red Curry      Origin: Britain	Pwdin Berw Bara Lawr (Laverbread Suet Pudding)      Origin: Welsh	Rasam      Origin: Southern India
Pressure Cooker Vegetable and Coconut Curry      Origin: Fusion	Pwdin Bricyll Siocled (Chocolate Apricot Pudding)      Origin: Welsh	Rasmalai      Origin: India
Prik Gaeng Panang (Panang Red Curry Paste)      Origin: Thailand	Pwdin Bricyll Siocled (Chocolate Rhubarb Pudding)      Origin: Welsh	Raspberry Jam Shortbreads      Origin: Britain
Pudina Chutney (Indian Mint Chutney)      Origin: India	Pwdin Briwfwyd (Mincemeat Pudding)      Origin: Welsh	Ratafia Biscuits      Origin: Scotland
Pudina Chutney (Mint Chutney)      Origin: India	Pwdin Eirin Mair Siocled (Chocolate Gooseberry Pudding)      Origin: Welsh	Raw Seaweed Salad      Origin: Fusion
Pudina tal-Hobz (Maltese Bread Pudding)      Origin: Malta	Pwdin Eirin Melyn Siocled (Chocolate Greengage Pudding)      Origin: Welsh	Red Chicken Mole      Origin: Mexico
Puerto Rican Tembleque (Quaking Coconut Pudding)      Origin: Puerto Rico	Pwdin Ffrwythau'r Berllan (Orchard Fruit Pudding)      Origin: Welsh	Red Clover and Almond Biscuits      Origin: Britain
Pulë me Arra (Chicken with Walnuts)      Origin: Albania	Pwdin Reis Mam (Mum's Rice Pudding)      Origin: Welsh	Red Curry Cambogee with Meat      Origin: Cambodia
Puli Pithe      Origin: India	Pwdin Rhiwbob ac Afal Siocled      Origin: Welsh	Red Curry Dipping Sauce      Origin: Thailand
Pullum Numidicum (Numidian Guinea Fowl)      Origin: Roman	Pynnonade (A Dish of Pine Nuts)      Origin: England	Red Curry Risotto with Prawns      Origin: Fusion
Pullus Vardanus (Chicken à la Varus)      Origin: Roman	Quaking Pudding      Origin: Britain	Red-red with Spiced Plantains      Origin: Ghana
Pumpes (Pork Meatballs)      Origin: England	Quamar-el-Deen Dessert (Dried Apricot Leather Dessert)      Origin: Bahrain	Reform Cake with Almonds      Origin: Serbia
Pumpkin Bread      Origin: American	Quarktorte mit Agar-agar (No-bake Quark Cheesecake with Agar-agar)      Origin: Switzerland	Rendang Curry Paste      Origin: Fusion
Pumpkin Brownies      Origin: Britain	Quatre Epices      Origin: France	Rendang Daging (Malaysian Beef Rendang)      Origin: Malaysia
Pumpkin Cake      Origin: Liberia	Qubbajt (Maltese Nougat)      Origin: Malta	Rendang Fish Curry      Origin: Fusion
Pumpkin Cheesecake      Origin: Britain	Queijadinhas Crioulas (Creole Cheesecakes)      Origin: Cape Verde	Resalsike (Royal Fruit Stew)      Origin: England
Pumpkin Chelsea Buns      Origin: British	Quemadmodum Sinapis Facias (How to Make Mustard)      Origin: Roman	Resmolle      Origin: England
Pumpkin Croquettes      Origin: Fusion	Queque de Zanahoria (Chilean Carrot Cake)      Origin: Chile
Pumpkin Fudge      Origin: American	Quiche Dent-de-Lion (Swiss Dandelion Quiche)      Origin: Switzerland

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