The peanut is not a nut. It is a legume: a member of the Fabaceae family, closely related to lentils, chickpeas, and beans. It is placed in the Nuts category on this site because that is how cooks and eaters the world over reach for it, in the same way that the tomato sits under Vegetables. The story of its true nature is part of the peanut's fascination.
Arachis hypogaea emerged from a natural hybrid between two wild species (Arachis duranensis and Arachis ipaensis) in the Gran Chaco lowlands of southern Bolivia and northwestern Argentina, where both wild progenitors still grow today. The cultivated peanut was domesticated from this hybrid around 7,000 BCE, making it one of the oldest cultivated plants in the Americas. The peanut has a remarkable botanical behaviour called geocarpy: it flowers above ground, then after fertilisation buries its developing pods underground to mature, which is why it is also called the groundnut.
Two cultivated subspecies developed from this single South American origin: A. hypogaea subsp. hypogaea (Virginia and Runner types) produces larger, two-kernelled pods and is the primary variety for roasting and snacking. A. hypogaea subsp. fastigiata (Spanish and Valencia types) produces smaller, rounder pods with more kernels per pod and is the primary variety for peanut oil and boiling.
Both subspecies originate in South America. All peanut cultivation worldwide descends from this single Bolivian domestication event.
From South America, the peanut travelled in two great waves. The first was indigenous: Amazonian trade networks spread peanut cultivation northward through Brazil to Mesoamerica over several thousand years, reaching central Mexico and the Aztec heartland. The second wave was colonial: Portuguese traders, operating between Brazil and their Atlantic and Indian Ocean trading posts in the 16th century, carried the peanut to West Africa, India, China, and Southeast Asia within a single generation. Enslaved Africans who recognised the plant from West Africa are credited with establishing peanut culture in colonial Virginia, from where it spread across North America.
The peanut is among the most consumed foods on earth. India and China together produce more than half the world's peanuts. It is the primary cooking oil of much of West and Central Africa; the protein and fat base of Indonesian and Thai peanut sauces; the foundation of Maharashtrian and Gujarati vegetarian cooking in India; the flavour of Sichuan cold noodles; the defining crop of the American South. Peanut butter (an American innovation of the 1890s) is now the largest single use of peanuts in the United States. West and Central Africa depend on groundnuts as a staple fat and protein source more than any other region on earth.
Historical Journey of Peanut
Gran Chaco, Bolivia — c. 7000 BCE
The peanut's wild progenitors (Arachis duranensis and Arachis ipaensis) grow in the Gran Chaco lowlands of southern Bolivia. A natural hybrid between them produces Arachis hypogaea, which is selected and cultivated by indigenous communities here around 7,000 BCE. The peanut's unique geocarpy (flowering above ground, then burying its developing pods to mature underground) is part of what drew early cultivators to manage and improve it. The Chaco and adjacent Andean piedmont remain the centre of wild Arachis biodiversity today.
- Salsa de Maní (Bolivian/Andean peanut sauce)
Huaca Prieta, Coastal Peru — c. 3500 BCE
Peanuts appear in the archaeological record at Huaca Prieta on Peru's northern coast, found in burial offerings alongside other cultivated plants. Peanut cultivation spreads from the Bolivian highlands into the coastal river valleys of Peru, where they are grown in irrigated plots and traded along the Andean exchange networks. Peruvian peanuts remain a distinct strand of Andean cooking: the peanut sauce tradition of Arequipa and the coastal valleys is one of the world's oldest continuously prepared peanut cuisines.
- Ocopa Arequipeña (Peruvian peanut sauce over potatoes)
Amazon Basin, Brazil — c. 2000 BCE
Peanut cultivation spreads through Amazonian trade networks into what is now Brazil, where wild Arachis species are native across the cerrado and savannah margins of the upper Amazon basin. Indigenous Tupi-speaking peoples cultivate and process peanuts; the word 'paçoca', for the ground peanut preparation, comes from the Tupi verb meaning 'to pound.' Brazil becomes the staging post from which the Portuguese will carry the peanut to the world in the 16th century.
- Paçoca (Brazilian peanut candy)
- Caruru (Bahian okra and peanut stew)
Oaxaca & Central Mexico — c. 800 BCE
Peanuts spread northward from South America into Mesoamerica via Amazonian and Andean trade networks, appearing in archaeological sites in Oaxaca and central Mexico. The Aztecs call it 'tlalcacahuatl' (earth cacao), recognising the oily, seed-like quality it shares with cacao. Peanuts appear in Aztec tribute lists and are ground into sauces alongside dried chiles and tomatoes. The mole de cacahuate tradition of Oaxaca is the living heir to this pre-Columbian peanut sauce culture.
- Mole de Cacahuate (Oaxacan/Mexican peanut mole)
Hispaniola & Cuba, Spanish Caribbean — c. 1492
When Christopher Columbus arrived on the island of Hispaniola in 1492, the Taíno people fed him a small, oily seed they called 'maní', a word that entered Spanish and remains the peanut's name throughout the Caribbean and Latin America to this day. The Taíno had cultivated the peanut in their conuco mound-gardens alongside cassava, sweet potato, and corn for centuries before European contact. Spanish colonists settling Cuba, Hispaniola, and Puerto Rico found the peanut already integrated into Caribbean agriculture and adopted it readily. By the early 17th century, when English colonists established Virginia, Spanish ships from the Caribbean were carrying peanuts northward. In Haitian Creole, French colonists later renamed the peanut 'pistache' (thinking it resembled a pistachio), producing one of the Caribbean's most beloved confections: tablettes de pistaches, a peanut brittle made with raw cane sugar that captures the intersection of indigenous, African, and colonial Caribbean foodways.
- Tablettes de Pistaches (Haitian peanut brittle)
Senegambia, West Africa — c. 1520s
Portuguese traders operating between Brazil and the Guinea coast introduce the peanut (groundnut) to West Africa around 1520. The recognition is immediate: West African farmers see in the groundnut a crop that fixes nitrogen, tolerates the Sahel's dry season, and produces both protein and cooking oil in a single harvest. Within a generation, groundnut cultivation spreads rapidly inland from the Senegambia coast. Mafé (groundnut stew) emerges as one of the defining dishes of the Mande and Wolof culinary tradition.
- Mafé (West African groundnut stew)
Goa & Maharashtra, India — c. 1530s
Portuguese traders introduce the peanut (moongphali, or shengdana in Marathi) to India through Goa, their trading base on the Konkan coast. The peanut spreads rapidly into Maharashtra and Gujarat, where it fills a vital role in vegetarian cooking as a high-protein, high-fat seed that is cheaper than dairy and more abundant than sesame. India will eventually become the world's second-largest peanut producer. The Maharashtrian shengdana amti (a peanut curry) is among the oldest continuously prepared peanut dishes outside the Americas.
- Shengdana Amti (Maharashtrian peanut curry)
Macau, Portuguese trading post — c. 1540s
Portugal established its trading presence in Macau from the 1530s, formalising it as a leased territory in 1557, the oldest European colonial outpost in Asia. Operating the most extensive ocean trading network in the world, Portuguese merchants carry the peanut (amendoim, from the Tupi 'manduí') eastward through Goa and onward to Macau. The Macanese community (Portuguese traders, their Malay, Indian, and African wives, and Fujian Chinese merchants conducting trade through the harbour) creates a distinctive fusion cuisine in which the peanut finds early expression. Caldo de amendoim, the Portuguese colonial peanut soup carried through Brazil and Angola, is prepared in Macau by the late 16th century, here enriched with ginger, spring onion, and coconut milk. Fujian traders operating from Macau's harbour carry both the peanut and knowledge of its cultivation back to the Chinese mainland, making Macau the first gateway through which the Portuguese peanut entered China.
- Caldo de Amendoim (Portuguese-Macanese peanut and sweet potato soup)
Fujian, China — c. 1560s
Peanuts reach China via two routes simultaneously: Portuguese traders through Macau, and Spanish galleons from the Philippines bringing American crops to Fujian. The Chinese name 花生 (huāshēng, meaning 'flower born') reflects the geocarpic flowering behaviour. Peanuts become central to Sichuan cold-dish cuisine; the crushed roasted peanut is a defining texture in dan dan noodles and bang bang chicken, and a beloved snack throughout China. China is today the world's largest peanut producer.
- Dan Dan Mian (Sichuan dan dan noodles with peanut-sesame sauce)
Manila, Philippines — c. 1565
Spain establishes Manila as the capital of the Philippines in 1571 and operates the Manila Galleon trade route from 1565 to 1815, the most sustained transpacific commercial link in history, connecting Acapulco in New Spain with Manila on an annual voyage. American crops cross the Pacific on these galleons: peanuts, sweet potatoes, corn, and tomatoes all enter Asia through Manila. Chinese Fujian traders (the Sangley community resident in Manila's Parián, the Spanish-designated Chinese quarter established in 1594) acquire peanuts from Spanish merchants and carry them on their regular trading voyages back to Fujian, making Manila the second gateway through which the peanut entered China. The Philippines develops its own profound peanut culture: kare-kare, a slow-braised oxtail stew in a thick peanut sauce served with fermented shrimp paste bagoong, emerges from the Pampangan kitchen tradition of central Luzon to become one of the great dishes of Filipino cuisine.
- Kare-Kare (Filipino oxtail and vegetables in peanut sauce)
Gold Coast, West Africa — c. 1545
The groundnut reached the Gold Coast of West Africa, the territory of the Akan-speaking peoples and the site of Portugal's most active West African trading fortresses, in the decades following the initial Portuguese contact of the 1470s. Unlike the Senegambian introduction (which was driven primarily by agricultural diffusion through the Sahel interior), the Gold Coast adoption was shaped by the dense coastal trading networks connecting the Portuguese forts with the Akan hinterland: groundnuts moved rapidly inland along these established exchange routes. In Akan culinary tradition, the groundnut's fat-rich, protein-dense kernel found immediate use alongside already-established practices of pounding oil-bearing seeds into cooking pastes. The nkwan (groundnut soup) tradition of the Akan peoples integrates the peanut into a slow-cooked broth enriched with tomatoes, onion, and scotch bonnet chilli, with pumpkin or other starchy vegetables added to provide body and sweetness. This preparation became one of the defining soups of the Ghanaian kitchen: roasted groundnuts are ground into a thick paste and stirred into the broth, producing a rich, clay-orange soup of great depth and warmth. The Gold Coast became, through the colonial period and into independence, one of West Africa's most significant groundnut-producing regions, and the nkwan tradition remains one of Ghana's culinary touchstones.
- Ghanaian Pumpkin Groundnut Soup (West African pumpkin and groundnut soup with palm oil and scotch bonnet)
Kano, Northern Nigeria — c. 1570s
The groundnut spreads inland from the Senegambian coast through the savannah trade networks of the Sahel, reaching the Hausa states of northern Nigeria. Kano becomes one of the great centres of the West African groundnut trade, with massive export pyramids of bagged groundnuts a defining image of 20th-century Nigeria. Nigerian groundnut soup (a deep, palm oil-rich broth thickened with ground peanuts) becomes a staple of northern Nigerian cuisine, eaten daily with tuwon shinkafa.
Java, Dutch East Indies — c. 1600s
The Dutch East India Company introduces peanuts to Java, where they are immediately adopted into Javanese cooking. The peanut sauce (sambal kacang) that accompanies satay and dresses gado-gado is a Javanese innovation, an application of the new legume to the existing tradition of fermented shrimp paste, coconut milk, and tamarind sauces. Satay (meat grilled on skewers over coconut husk charcoal) with its peanut sauce becomes one of the greatest street food traditions in the world, spreading from Java across the Malay archipelago.
- Gado-Gado (Indonesian vegetable salad with peanut sauce)
- Satay with Peanut Sauce (Indonesian sate ayam)
Bangkok, Thailand — c. 1620s
Peanuts reach Thailand from the Malay Peninsula and Java, entering Thai cuisine through the same coastal trade routes that brought chiles, tomatoes, and other American crops. Ground roasted peanuts become essential to Thai salad dressings (som tam), curry finishing (massaman), and above all pad thai (the stir-fried noodle dish promoted as a national dish in the 1930s, in which peanuts are both flavour and texture). Thailand's culinary adoption of the peanut is among the most thorough in Asia.
- Pad Thai (Thai stir-fried rice noodles with peanuts)
- Massaman Curry (Thai Muslim slow-braised beef with peanuts)
- Som Tam (Thai green papaya salad with peanuts)
Virginia, United States — c. 1700s
The peanut enters North America through two routes: Spanish colonists bringing it from the Caribbean, and, most significantly, enslaved West Africans who recognised the plant from their homelands and knew how to grow and use it. Virginia's plantation economy adopts peanuts as pig feed initially, but the plant's use in cooking is maintained in African American kitchen culture. By the 19th century, peanuts are a street food staple across the South. George Washington Carver's agricultural research at Tuskegee in the early 20th century transforms the peanut into a commercial crop. Peanut butter (developed in the 1890s) becomes the defining American peanut preparation.
- Virginia Peanut Soup (Colonial American cream of peanut soup)
Malawi & Zambia, Central Africa — c. 1750s
The groundnut (nzungu in Chichewa) spreads from West Africa southward through the interior trade routes of Central Africa, reaching the lake regions of Malawi and Zambia by the mid-18th century. In the high-rainfall, iron-poor soils of the Central African plateau, the nitrogen-fixing groundnut becomes the most valuable crop in the agricultural system. Ground into a thick paste, it forms the basis of ndiwo (relishes) eaten with nshima, the stiff maize porridge that is the foundation of every meal in Malawi, Zambia, and Zimbabwe. The groundnut is today the dominant cooking fat and protein source across Central and Southern Africa.
- Nshima with Groundnut Relish (Malawian nshima ya nzungu)
