Every major drinking culture has a ritual drink that only insiders know about. In Pamplona, for the runners who come back to the encierro year after year, that drink is the kaiku y coñac: a Kaiku chocolate milk and cognac, ordered at Bar Txoko on Plaza del Castillo in the minutes after the run ends. If you have spent time on the route and never heard of it, you have been missing the second half of the morning.
The kaiku y coñac is not served in the post-run chaos near the bullring. It is not a guidebook recommendation. It does not appear on San Fermin souvenir menus. It is ordered by people who run the encierro routinely, who know each other from the route, who have a standing reason to gather in the same corner of the same bar every morning the bulls run. The reason is not just celebration. The reason is to find out if everyone made it through.
This article draws on nearly two decades of direct post-run experience at Bar Txoko, the accounts of veteran runners, and the history of the lumumba cocktail across Europe to tell the full story of a drink that has outlasted the era that created it.
The Drink: A Lumumba by Any Other Name
The kaiku y coñac is the Pamplona name for a cocktail the rest of Spain calls a lumumba (also spelled lugumba or lubumba in informal use). The recipe is simple: chocolate milk and brandy or cognac, served cold over ice or warm, depending on the morning and the runner.
It is the unpretentious variant of a Brandy Alexander. Where that cocktail uses cream and crème de cacao, the lumumba substitutes a chocolate milk or shake. In Spain during the era of La Movida, the 1970s and 1980s, it was everywhere. Young people drank it with Cacaolat or Okey, the chocolate shake brands of that moment, and cognac. Today it has largely vanished from Spanish bar menus.
In Pamplona, it never left.
The “kaiku” in the name refers to Kaiku Corporación Alimentaria, the Basque dairy brand whose 200ml chocolate milk bottles are the standard pour at bars across Navarra. In Basque, the word kaiku also names a traditional wooden milk vessel used by Basque shepherds for centuries: a conical pitcher carved from a single piece of birch or chestnut, documented as far back as Strabo, who mentioned it roughly two thousand years ago. The dairy company named itself after this vessel. When runners order “un kaiku con coñac” at Txoko, they are using a name that reaches, however inadvertently, back to pre-Roman Basque pastoralism.
The cognac in the mix is almost always Spanish brandy. “Cognac” and “brandy” are used interchangeably in the vernacular for this drink. What sets the Pamplona version apart from a generic lumumba is the Kaiku brand specifically, and the context in which it is consumed.
The Name: Patrice Lumumba and a Cocktail That Crossed Europe
The word lumumba attached to a cocktail comes from Patrice Lumumba (1925–1961), the first democratically elected Prime Minister of the Democratic Republic of Congo and a central figure in African independence. His assassination in January 1961, carried out with the documented involvement of Belgian intelligence and the CIA, made him an internationally recognized political martyr, particularly in left-leaning European circles.
The drink is believed to have originated in West Germany in the early 1960s, close in time to his death and the political attention that followed. How precisely his name migrated to a chocolate milk and brandy cocktail is not fully documented. Spanish food writers note that the association is at minimum historically layered and has been described by some as carrying racial overtones. Whether the name was tribute, coincidence, or casual appropriation of the era, no consensus has emerged.
In northern Germany and Scandinavia, the same drink goes by Tote Tante (“Dead Aunt”), named after a local legend from the island of Föhr: a woman who died in America and wanted to be buried at home could not be repatriated at cost, so her ashes were returned inside a cacao box. The drink traveled across Europe under different names depending on where it landed.
In Spain it standardized around brandy rather than rum (which remains common elsewhere in Europe) and rode the wave of La Movida before fading. In Pamplona, in a bar on Plaza del Castillo, it found a community that never stopped ordering it.
Bar Txoko: The Place at the Corner of the Square
Bar Txoko occupies Plaza del Castillo, 20, in the arcaded corner of the square that functions as the social center of Pamplona. The word txoko in Basque means “corner” or “nook.” The bar earns the name: it sits under the arcade at the corner of the plaza, protected from rain, open to the square, positioned so that anyone walking in from any direction will see it.
The bar opened in the early 1930s under the name “Choko.” Ernest Hemingway was a regular. In The Dangerous Summer, his account of the 1959 San Fermin season, he wrote that many mornings he had breakfast at “bar Choko.” His wife Mary Welsh named it her favorite Pamplona bar in her memoir How It Was. Valerie Danby-Smith, who became Hemingway’s secretary in 1959 and later married his son, describes meeting the Hemingways at Txoko on the opening night of the 1959 festival in her book Running with the Bulls: My Life with the Hemingways: “The Choko was in a corner of the Castillo Square. The first night of the festival we took part in the dances in the square, to the rhythmic beat of the Riau-Riau and Basque folk music, joining in loud voices to the songs and the laughter.”
That is the same square, the same arcaded corner, that runners from the encierro route walk into after the run ends.
Bar Txoko runs on fiesta hours during San Fermin, which means it stays open through the night. All of Pamplona recalibrates during the nine days of the festival. Bars that close at midnight on a normal evening operate until four or five in the morning, or later, during fiesta. Txoko is open when runners arrive at 8:15 in the morning and open when people are still at the plaza tables well into the following night. During San Fermin, the concept of a closing time is largely theoretical.
The Real Function of the Kaiku y Coñac
The encierro route covers roughly half a mile from the corrals at Santo Domingo to the entrance of the bullring. Experienced runners do not run the full distance. Each runner picks a position and holds it. One runner is at Santo Domingo. Another is at the Ayuntamiento. Another is in the middle of Estafeta. Another is at La Curva. Another is at the callejón approaching the ring.
When the run ends, these runners have no shared picture of what happened. Each one knows exactly what occurred in their section of the route and nothing beyond it. A runner gored on Estafeta may not have been witnessed by anyone positioned near the corrals or the bullring.
This is why Encierro’s foreign runners convene at Bar Txoko after every run.
“The purpose of going to Txoko and having the chocolate milk and cognac is really to convene and make sure that everyone’s in one place. Because all the runners run different parts of the run route, convening to a single place allows them to get the word out if they saw a runner injured, so that people can jump in a taxi and head to the hospital.”
Dennis Clancey, Founder of Encierro
The structure of it is simple. Runners arrive at the plaza in the minutes after the run. They find a spot at the bar or a table under the arcades. The kaiku y coñac comes out. The debrief begins: how the bulls moved that morning, where the sueltos went, what happened at each section of the route, who saw what.
If someone has not arrived at Txoko within a reasonable window after the run, and someone else reports having seen them go down and not get up, the group responds. There is no formal protocol. What happens is exactly what you would expect from a group of people who run together regularly: someone gets in a taxi and goes to the hospital.
The drink is not incidental to this. The act of ordering a kaiku y coñac at Txoko is the sign that you are in, you are accounting for yourself, and you are counting others. It is a roll call conducted over chocolate milk and cognac in a bar that Hemingway used to visit for breakfast.
Chocolate or Vanilla: The Debate That Matters After the Run
The lumumba exists in two forms in Pamplona. The first is the classic: Kaiku chocolate milk and cognac. The second uses vanilla or plain milk instead.
Among runners who gather at Txoko, this is a genuine and recurring point of contention. Dennis Clancey’s position is unambiguous: chocolate. Others who have been coming to the plaza for years will not order the chocolate version and request vanilla without hesitation.
Neither is wrong. What matters is that the order is placed, the drink arrives, and the runner is at the table.
If Someone Doesn’t Show: The Hospitals
The medical infrastructure along the encierro route during San Fermin is substantial. The Navarra Public Health Service deploys 200 medical personnel, stationed at 16 first-aid posts positioned roughly every 50 meters along the route. There are approximately 20 ambulances. A seriously gored runner can be stabilized and in hospital in under 10 minutes from the moment of injury.
Serious injuries are taken to the Hospital Universitario de Navarra (HUN) at Calle Irunlarrea 3, 31008 Pamplona. This is the principal public hospital complex in the city, formed in 2010 from the merger of the former Hospital de Navarra, Hospital Virgen del Camino, and Clínica Ubarmin. It received university hospital status in October 2021. Its emergency services operate 24 hours. It has treated encierro injuries, in significant numbers, every year the bulls have run.
The Red Cross handles minor injuries, bruises, lacerations, and superficial wounds at the route-side posts. Only serious injuries are transported to HUN.
One critical fact for foreign runners: Spain’s national health system does not cover medical expenses for non-residents of Navarra. Runners who require hospital treatment will be billed. Most standard travel insurance policies explicitly exclude injuries incurred in activities classified as excessively risky. A runner planning to be on the route should verify their coverage specifically against encierro injuries before arriving in Pamplona. Uninsured foreign runners may find the costs billed to their home-country embassy.
The runner who walks into Txoko after the run has cleared all of that for the morning. For the one who does not arrive, the kaiku y coñac can wait.
Kaiku y coñac is a runner’s ritual specifically, tied to the encierro itself. It is not the only Pamplona morning drink built around coffee and a spirit. The carajillo follows the same basic logic on a national scale, coffee plus a shot of something stronger, timed to the mid-morning almuerzo hour rather than to the run.
Frequently Asked Questions
What is a kaiku y coñac?
A kaiku y coñac is a Kaiku-brand chocolate or vanilla milk mixed with cognac or Spanish brandy. It is the Pamplona name for a lumumba, a cocktail popular across Spain in the 1970s and 1980s that has since disappeared from most bars. Among experienced encierro runners, it is the standard post-run drink at Bar Txoko on Plaza del Castillo.
What is Bar Txoko in Pamplona?
Bar Txoko is a traditional bar at Plaza del Castillo, 20, in the corner of Pamplona’s central square, open since the early 1930s. Ernest Hemingway had breakfast there during the 1959 San Fermin season. During fiesta it operates on the late-night hours of the entire city. It serves as the established post-encierro gathering point for experienced runners.
What is a lumumba cocktail?
A lumumba is chocolate milk or a chocolate shake mixed with brandy or cognac. The name comes from Patrice Lumumba, the first Prime Minister of the Democratic Republic of Congo, assassinated in 1961. The drink originated in West Germany in the early 1960s and became widespread in Spain during the 1970s and 1980s. In Pamplona it survives as the kaiku y coñac.
Where do injured encierro runners go in Pamplona?
Serious injuries during the encierro are taken to the Hospital Universitario de Navarra (HUN) at Calle Irunlarrea 3, Pamplona. The route has 200 medical personnel and 16 first-aid posts, with around 20 ambulances. A gored runner can be transported to hospital in under 10 minutes. Foreign runners should know that Spain does not cover non-resident medical costs, and most travel insurance excludes bull run injuries.
Every article on the Encierro blog is authored or reviewed by active bull runners with direct experience in Pamplona.