Bagna càuda
Bagna càuda (Piedmontese for "hot dip") is a boiling-hot sauce of garlic, oil and desalted anchovies into which raw and cooked vegetables are dipped. Born in the countryside of southern Piedmont, it is considered one of the signature dishes of regional gastronomy, and it is more a collective ritual than a mere dish: the sauce simmers at the centre of the table and everyone dips in cardoons, peppers and cabbage, mopping up the oil with bread[1]. The Treccani dictionary lists it as a sauce "typical of Piedmontese cuisine", to be served in an earthenware pot kept warm by a small burner, preferably paired with cardoons[2].
A dish born far from the sea
The paradox of bagna càuda is that its main ingredient comes from the sea, in a region that has none. The Asti-based historian Gianluigi Bera, writing in the magazine Astigiani, traces the dish's roots back to garlic, the quintessential peasant food: as early as the treatise of the physician Antonio Guainerio, a native of Pavia active between Turin and Chieri, it was noted that farmers used to cook garlic with breadcrumbs[3]. Salted anchovies, on the other hand, arrived along the salt routes: since the 12th century, mule caravans and merchants from Asti travelled the well-documented strata salis linking the salt pans of Provence to Nice, and preserved fish travelled along with the salt[3].
Even olive oil was not always a given. According to Bera, in the 16th and 17th centuries it was rather expensive, while Piedmont has well-documented local production of walnut and hazelnut oil; olive oil only became dominant later[3]. A trace of this survives in the codified recipe, which still allows for "a small glass" of walnut oil alongside extra-virgin olive oil[4].
The anchovy sellers of Valle Maira
The ones who brought anchovies into Piedmontese taverns and farmyards were the acciugai, itinerant vendors who mostly set out from Valle Maira, in the province of Cuneo: from Paglieres, a hamlet of San Damiano Macra, and from Dronero. From September to Easter they would travel down to the hills and the Po valley plain, covering markets and farmsteads across Piedmont, Lombardy and Emilia; the most sought-after anchovies were the large, meaty "Spanish" ones caught in the Cantabrian Sea[5]. Paola Gho and Giovanni Ruffa, recounting their history in Astigiani, explain why innkeepers were so keen on them: "For taverns they were the ideal food. Appetizing and tantalizing, they encouraged chatting and, above all, drinking"[5]. Even today, the heirs of that trade gather in Dronero on the first Sunday of June, united in the valley's association of anchovy sellers[5].
The first literary mention
The peasant sauce entered literature in 1876 with the novel Vecchio guscio by Roberto Sacchetti, born in Montechiaro d'Asti, where it appears as the centrepiece of a rustic breakfast paired with peppers[3]:
"Just then Placido arrived with the provisions: a tablecloth full of peppers, the little pan with oil and anchovies"
From an everyday food of the fields, bagna càuda has over time become a festive autumn and winter ritual[3].
The recipe registered by a notary
On 7 February 2005, the Asti chapter of the Accademia Italiana della Cucina registered in Costigliole d'Asti, through a deed signed by notary Marzia Krieg, what is considered the most reliable and transmissible version of the recipe[4]. For twelve people it calls for twelve heads of garlic, six wine glasses of extra-virgin olive oil (with an optional small glass of walnut oil) and six hundred grams of red Spanish anchovies. The sliced garlic cooks slowly in the oil without browning, then the desalted anchovies are added and left to simmer for about half an hour; butter, optional, is added only at the end[4]. The sauce is brought to the table in fujot, individual terracotta burners[4].
On the subject of anchovies, keepers of the recipe are uncompromising: they must be "red Spanish" ones, so called for their origin and for the colour the flesh takes on after prolonged salting, aged for at least a year; ready-made jarred fillets are discouraged. The preferred oil is Ligurian extra-virgin, and freshly pressed new oil is considered the best[6].
The cardo gobbo and other vegetables
The quintessential companion to bagna càuda is the cardo gobbo ("hunchback cardoon") of Nizza Monferrato, a Slow Food presidium grown in the sandy soils of the Belbo valley, in Monferrato, using only the Spadone variety[1]. In September the plants are bent over and covered with soil: seeking light, they curve and become white and tender, so much so that they can be eaten raw. Harvesting runs from October to February, exactly the bagna càuda season[1]. The dish also features raw or roasted peppers, cabbage, Jerusalem artichoke, beetroot, boiled potatoes, savoy cabbage, endive, spring onions and cauliflower[6].
The Bagna Cauda Day
In 2013 the magazine Astigiani, edited by Sergio Miravalle, launched the Bagna Cauda Day in the Asti area, an autumn weekend during which restaurants, local tourist boards and wineries all serve the sauce at the same price; over the years the event has spread to the Casalese and Ovadese areas, to the Langhe, to Turin, to Valle d'Aosta, to Milan and even to Japan and New Zealand[7]. By its third edition, in November 2015, over a hundred venues were taking part with more than twelve thousand seats at the table, and on that occasion the idea was announced of nominating bagna càuda for UNESCO intangible heritage status[8]. Miravalle explained that "the dossier to be submitted to UNESCO will be studied and promoted in agreement with the University of Gastronomic Sciences in Pollenzo"[8]. By 2017 the number of venues had risen to over one hundred and fifty, with more than sixteen thousand covers[7].
Among the symbols of the event is the artist-designed "bavagliolone", a large illustrated napkin-bib that guests keep as a souvenir: in the 2015 edition it was designed by the artist Giancarlo Ferraris[9]. In 2025, 160 venues took part across Piedmont and around the world, and the fourteenth edition is scheduled for the weekends of 20–22 and 27–29 November 2026[10]. In their invitation letter to restaurateurs, the organizers write: "We are not after new records. What we need are convinced and convincing allies"[10]. The event also has a winter follow-up, the Bagna della Merla, which between 29 January and 1 February 2026 involved more than a hundred venues. On that occasion, the twelve venues most appreciated by participants in the November 2025 Bagna Cauda Day were awarded, chosen from among more than eight hundred ratings: they included a trattoria in Turin and one in Carmagnola, alongside taverns and local tourist boards from the Asti, Biella and Alessandria areas and from Liguria[11].
Pages linking here
Sources
- Fondazione Slow Food
- Treccani
- Astigiani — 26 July 2021
- Bagna Cauda Day – Astigiani APS
- Astigiani — 25 March 2021
- Bagna Cauda Day – Astigiani APS
- Italia a Tavola — 7 November 2017
- Gazzetta d'Alba — 11 November 2015
- Astigiani
- Bagna Cauda Day – Astigiani APS — 3 August 2026
- Bagna Cauda Day – Astigiani APS — 2 February 2026