ADVANCED One Shot chocolate technonlogy Valrhona class
CHOCOLATE COURSES

One Shot

September 1-3, 2026 - 3 days

Romain Grzelczyk

Pastry Chef Trainer, L’École Valrhona

@romaingrzelczyk

Mario Bacherini

Ecole Valrhona Pastry Chef - North America

@mightysugar

Buffalo, NY

$ 1320 $ 924
30% discount off all classes for north american cercle v members
Interested in participating in the class Have questions ? Email ecolebrooklyn@valrhona.com

Class level: ADVANCED

Discover the power of automation in your chocolate production. L’École Valrhona Brooklyn, in collaboration with Tomric, invites you to an intensive hands-on workshop dedicated to mastering the One-Shot Selmi Tuttuno system. Designed for professionals seeking to streamline and scale their bonbon and confection output, this class focuses on producing filled chocolates, bars, and confections using premium Valrhona couverture. 

Led by L’École Valrhona Pastry Chef and One-Shot specialist Romain Grzelczyk, you’ll gain expert insight into: 

- Proper setup, operation, and maintenance of the One-Shot Selmi Tuttuno machine 

- Recipe adaptation for optimal performance and product quality 

- Integration of key accessories including the mold charger, Vibra, and cooling tunnels

You’ll also explore the science behind Valrhona’s ingredients; understanding how to balance recipes for ideal texture, flavor, and shelf life. The class includes a deep dive into mold selection and compatibility, tempering techniques, and troubleshooting common production challenges. 

Whether you're expanding your business or refining your workflow, this course offers a rare opportunity to work directly with industry-leading equipment and chocolate experts. Discover how to maximize your investment and unlock the full potential of the One-Shot system.

OBJECTIVES:

  • Operate and maintain the One-Shot Selmi Tuttuno system with confidence and precision 
  • Adapt and optimize chocolate recipes for use with One-Shot technology 
  • Understand the interaction between molds, accessories, and machine settings 
  • Apply tempering techniques and accessory tools to streamline production 
  • Analyze the composition of Valrhona chocolate and ingredients to improve texture, taste, and shelf life 
  • Troubleshoot common issues and ensure consistent product quality 

Schedule: 

8:30am-9:00am: Arrival & light breakfast  

9:00am-12:30pm: Class  

12:30-1:30pm: Lunch  

1:30-5:00pm: Class  

These times are approximations and may vary.  Please note that class may go over the allotted time to cover all the class material. As a result, we do not recommend booking travel that will require you to leave class at 5pm or earlier. Please keep this in mind when arranging your travel.   

What’s included in the class?  

  • A recipe book with all recipes and relevant methods or techniques (varies based on class theme).  
  • A diploma that certifies you have successfully completed the course.  
  • Light breakfast and catered lunch each day.  
  • Cocktail hour after first day of class (transportation to location not included). 

Chef  Referral  Program

Refer a friend for a l’École Valrhona Brooklyn 2026 professional class and receive a $200 credit to use towards a 2026 class, your friend will also receive a $200 credit to use towards the class they sign up for!

Biography

Chef Romain stepped into the workshop in his village’s bakery and pastry shop for the first time at the tender age of nine. It was at this exact moment that he found his vocation.

That sense of fascination having never left him, he did an apprenticeship in the Jura region with Camille Chevalet, who passed on his passion for chocolate and taught him values such as respect, rigor and sharing.

In 2000, he took the next step in his education with an apprenticeship alongside Philippe Segond. It was in Aix-en-Provence with this Meilleur Ouvrier de France that he got his “BTM” qualification in Chocolate and became a Chocolatier, a role he stayed in until 2011. Romain’s experience has allowed him to take up a hybrid role at Valrhona that combines making chocolate bonbons with R&D, a department in which he has spent four years teaching and learning.

In 2015, Romain joined the L’École Valrhona family as an Instructor and R&D Coordinator. It served as a golden opportunity to showcase the values which define his approach to chocolate-making.

Biography

Chef Mario Bacherini has had a career spanning over two decades across Europe, North America, and the Middle East. A graduate of culinary school in Florence, Italy, he began his journey as a chocolatier apprentice before honing his craft in Michelin-starred kitchens throughout Italy and France. His formative years included training under Olivier Bajard, Meilleur Ouvrier de France, in Perpignan. 

In 2008, Chef Bacherini moved to Paris to join the prestigious Hôtel Plaza Athénée, where he worked alongside French Pastry World Champion Christophe Michalak and contributed to Alain Ducasse’s three Michelin-starred restaurant within the hotel. 

By 2012, he had relocated to New York City to serve as Executive Pastry Chef at Nobu, overseeing pastry operations across three restaurants. During this time, he also traveled globally to lead masterclasses in Saudi Arabia, the UAE, Russia, Italy, France, and the United States, sharing his expertise with professionals and aspiring chefs alike. 

In 2017, Chef Bacherini settled in Los Angeles, where he was teaching pastry as an instructor and then launched his own consulting company. Through this venture, he has helped elevate emerging bakeries, pastry shops, and restaurants by developing menus, optimizing production workflows, conducting R&D, and training staff. 

Since 2023, Chef Bacherini has held the role of Valrhona’s Pastry Chef for the U.S. West Coast and Canada, continuing to inspire and innovate within the pastry community. 

If you cancel 45 days or more prior to the first day of class, you will be completely refunded. If you cancel within 45 days you will receive a 50% refund or 100% class credit to be used within a year of the cancellation date. If you cancel within one week of the class you will receive a 50% class credit to be used within one year of the cancelation date. 

We do our best to avoid canceling or rescheduling classes, however, please be aware that classes are subject to change due to conflicts, instructor illness, travel issues, etc. We will contact you immediately in case of any date changes or course cancellations. In the case a class is rescheduled or canceled we offer you the choice of a full refund or a class credit to be used within one year of the cancelation date. 

As Valrhona is not responsible for your accommodations we recommend booking refundable forms of transportation and accommodations, so if an unforeseen change occurs you will not be charged.

Contact us at ecolebrooklyn@valrhona.com for more details!

See available discounts here.