Every July, a members only kitchen on a quiet street in Pamplona’s Casco Viejo produces roughly fifteen thousand liters of a lemon and cava sorbete, pours it into pitchers for its own members, and never puts a bottle of it in a shop or a bar. The kitchen belongs to Gazteluleku, one of Pamplona’s sociedades gastronómicas, and its sorbet is the clearest proof of something most festival coverage never explains: the peñas do not just eat together during Sanfermines. They cook, in their own kitchens, under rules that predate the festival food scene built up around them by decades.
Most guides to eating during San Fermín stop at street level: which bar has the best pintxos, where to find magras con tomate at nine in the morning, which terrace on Plaza del Castillo has a table free. That coverage is not wrong, it is just incomplete. It skips the part of Pamplona’s food culture that visitors almost never see, because it happens behind a door that only opens for members: the peña local, run as a formal sociedad gastronómica, with its own kitchen, its own rotating cooks, and a set of habits that came to Navarra from the Basque Country’s cider houses and working men’s clubs long before the modern festival existed.
This piece draws on regional Navarra press coverage of the gastronomic society tradition, three independently reported histories of Gazteluleku’s sorbet specifically, and the same festival vocabulary and peña reference used across encierro.com’s coverage of Pamplona’s seventeen peñas.
What a Sociedad Gastronómica Actually Is
In Basque these clubs are called txokos, from a word meaning “cozy corner.” In Navarra and Castilian Spanish the same institution is usually called a sociedad gastronómica. Both terms describe the same thing: a private clubhouse built around one activity, cooking and eating together, run by and for its own members rather than the public.
The format traces to the late 19th century in San Sebastián, where taverns were expensive and kept limited hours, and the region’s urban cider houses, once a natural gathering place for groups of friends, were disappearing. A group of men founded what is generally cited as the first formal society, La Fraternal, on what is now Calle Fermín Calbetón in San Sebastián’s old quarter, explicitly as a club “for eating and singing.” The model spread across the Basque Country and into Navarra over the following decades. Today there are roughly 1,561 txokos across the wider Basque cultural geography, according to regional press reporting, which makes this a large, living institution rather than a folkloric footnote.
The original societies were built as male only spaces, a structural fact that shaped Basque and Navarrese social life for most of the 20th century, deliberately separate from the home and from mixed public taverns. Pamplona’s peñas absorbed that same clubhouse structure into their own locales well before Sanfermines became the global spectacle it is today, which is why a peña’s headquarters functions less like a bar and more like a members only kitchen with a bar attached.
Inside a Peña’s Own Kitchen During Fiesta
Pamplona currently counts seventeen peñas, most with a local, or clubhouse, concentrated in or near Calle Jarauta in the Casco Viejo. During the nine days of Sanfermines, each local runs its kitchen as a scheduled part of the festival program, not an afterthought squeezed in between parades.
Cooking duties typically rotate among members or fall to a small number of designated in house cooks, and the dishes are the same backbone of Navarrese home cooking found in any family kitchen in the region: magras con tomate (thin sliced serrano ham in tomato sauce, usually with a fried egg), ajoarriero, pochas (the region’s prized fresh white beans), stuffed peppers, and txistorra, the thin, fast curing Navarran sausage. Ingredients are drawn from Navarra’s own huerta, the market garden tradition that supplies the region’s restaurants and its home kitchens alike. It is the same communal instinct behind the peñas hauling three gallon jugs of kalimotxo through the streets each afternoon: food and drink prepared collectively, by the club, for the club.
The distinction that matters for a visitor is access. The street level almuerzo, the mid morning meal eaten standing up after the encierro, is open to anyone who can find a spot and a plate. A peña’s own kitchen is not. Eating a meal cooked inside a peña local generally requires being a member, being a guest of one, or having a personal connection that gets you through the door. That closed structure is not an oversight of the festival, it is the entire point of the sociedad gastronómica model: a space built deliberately apart from public commerce.
Gazteluleku: The Sorbet That Never Left the Kitchen
Gazteluleku, founded in 1980 on Calle San Francisco in the Casco Viejo, is one of Pamplona’s better known sociedades gastronómicas, and its lemon and cava sorbete is the clearest single example of how this closed culture produces something the rest of the city ends up talking about anyway.
The sorbet was not planned as a signature product. According to regional press accounts, it began in 1991 as an improvised dessert for one of the society’s own San Fermín meals, made from lemon ice cream blended with cava. It was popular enough among the society’s own members that it became an annual fixture, and it now appears only during the nine days of the festival, July 6 through 14, never before and never after. The exact ratio of lemon ice cream to cava is treated as a members’ secret, repeated across multiple independent press accounts without ever being published outright. By some estimates the society produces around fifteen thousand liters of it in a single festival.
None of that sorbet is sold commercially. It exists inside Gazteluleku’s own service, poured for members and their guests, which is precisely why most standard “best drinks of San Fermín” roundups either miss it entirely or mention it only in passing, without explaining where it actually comes from. A drink invented as one club’s private dessert has become one of the most talked about tastes of the entire festival, without a single bottle ever reaching a shop shelf.
Why Most Visitors Never See Any of This
The gap between what tourists experience and what the peñas actually do during Sanfermines comes down to membership, not secrecy for its own sake. Sociedades gastronómicas and peña locales were never designed as tourist attractions; they are private clubs that happen to operate during the same nine days as the world’s most famous street festival.
That does not mean the culture is invisible from outside. The Federación de Peñas de Pamplona oversees the sixteen peñas that belong to it (a seventeenth, Peña Mutilzarra, operates independently), and their public facing activities, the music, the processions, the communal presence in the streets and squares, are built by the same members who cook together behind closed doors. Peña La Jarana’s own history is a useful example: a club whose public identity, its colors, its songs, its place in the festival calendar, sits on top of decades of exactly this kind of members only clubhouse life. Understanding that the public spectacle and the private kitchen are two sides of the same institution changes how the whole festival reads, from the timing of the morning parades to why a specific peña’s colors and songs feel less like branding and more like the output of an actual clubhouse.
Frequently Asked Questions
What is a sociedad gastronómica?
A sociedad gastronómica is a private, members only clubhouse built around communal cooking and eating, known as a txoko in Basque. The format began in the Basque Country in the late 19th century as an alternative to expensive taverns and disappearing cider houses, and it spread into Navarra, where many of Pamplona’s peñas now run their own locales on the same model.
Can tourists eat inside a peña’s local during San Fermín?
Generally, no, not without being a member or the guest of one. Peña locales are private clubs, not restaurants, and their kitchens serve members first. Visitors who want a communal Sanfermines meal they can actually access should look to the street level almuerzo tradition instead, which is open to anyone.
What is in the Gazteluleku sorbet?
It is a lemon and cava sorbet, made from lemon ice cream blended with cava and served very cold in pitchers. The exact proportions are kept as a closely held secret within the society, and it is available only during the nine days of San Fermín, from July 6 through 14.
Are San Fermín’s peñas the same thing as gastronomic societies?
Not exactly, but they overlap heavily. A peña is a social club built around supporting and celebrating the fiesta itself, while a sociedad gastronómica is specifically a cooking and dining institution. In Pamplona, most peña locales are run on the same private, members only, kitchen centered model as a formal gastronomic society, which is why the two terms are often used almost interchangeably around Sanfermines.
Every article on the Encierro blog is authored or reviewed by active bull runners with direct experience in Pamplona.