Chicago · La Fête du Champagne
Laurent-Perrier Grand Siècle Masterclass
While most of Champagne’s prestige cuvées are vintage wines, Laurent-Perrier takes a contrary approach, believing that the art of assemblage can create the impossible - a perfect year. This takes the form of Grand Siècle, Laurent-Perrier’s remarkable top Champagne where each iteration is the blend of three complementary vintages that create a wine that is greater than the sum of its parts. This masterclass with Edouard Cossy, Global Director of Grand Siècle, will reveal the house’s philosophies through a tasting of four wines, beginning with Millésimé 2018 as an example of a single vintage followed by three examples of Grand Siècle - N°27, created from 2015, 2013, and 2012, and a comparison of N°24 – crafted from 2007, 2006, and 2004 – in both bottle and magnum, showcasing the varied timelines of evolution afforded by different formats.
Grand Siècle and assemblage
This masterclass centers on Laurent-Perrier’s approach to prestige Champagne through assemblage. The program contrasts that approach with the more common prestige-cuvée model of vintage wines, presenting Grand Siècle as Laurent-Perrier’s top Champagne and as a blend of three complementary vintages rather than a single-year release.
The guiding idea is that assemblage can create what Laurent-Perrier describes as a “perfect year,” with each Grand Siècle iteration intended to be greater than the sum of its parts. Edouard Cossy, Global Director of Grand Siècle, leads the session and uses the tasting to explain the house’s philosophy.
The four-wine tasting
The tasting begins with Laurent-Perrier Millésimé 2018, positioned as the single-vintage reference point. From there, the program moves to Grand Siècle Itération N°27, which is listed as a blend created from the 2015, 2013, and 2012 vintages.
The final comparison focuses on Grand Siècle Itération N°24, crafted from the 2007, 2006, and 2004 vintages. It is shown in both bottle and magnum format, with the format comparison used to examine the different timelines of evolution that bottle size can allow.
The published program names four pours: Millésimé 2018, Grand Siècle Itération N°27, Grand Siècle Itération N°24, and Grand Siècle Itération N°24 en Magnum. The same program notes that exact wines and vintages are subject to change.
Host, setting, and basic planning
La Fête du Champagne organizes the event, which takes place at Avec River North, a restaurant in Chicago. The listed address is 141 W Erie St, Chicago, IL 60654.
- The masterclass is scheduled for October 24, 2026, from 11:00 AM to 12:00 PM CT, with tickets priced at $95 + tax.
Frequently asked questions
What is the masterclass about?
It is a comparative masterclass and tasting focused on Laurent-Perrier’s philosophy of assemblage and on how Grand Siècle is built from three complementary vintages.
Which wines are named in the tasting?
The named tasting includes Laurent-Perrier Millésimé 2018, Grand Siècle Itération N°27, Grand Siècle Itération N°24, and Grand Siècle Itération N°24 en Magnum.
Which vintages are tied to the Grand Siècle iterations?
Grand Siècle Itération N°27 is listed as created from 2015, 2013, and 2012. Grand Siècle Itération N°24 is listed as crafted from 2007, 2006, and 2004.
Why include both bottle and magnum?
Grand Siècle Itération N°24 is shown in both formats to compare the different timelines of evolution that can come from bottle size.
Who leads the tasting?
Edouard Cossy, Global Director of Grand Siècle, leads the masterclass.
Hosts & guests
Edouard Cossy
Global Director of Grand Siècle · Laurent-Perrier
Featured venues & producers
Avec River North
Chicago
Laurent-Perrier
Tours-sur-Marne