For those seeking to "maitriser la patisserie" today, several institutions offer professional-grade training:

Establishments like Pâtisserie à la Carte in Paris offer 5-day immersive "mastering" weeks focusing on fundamental techniques like lamination and meringues. The Pastry Academy Online by Amaury Guichon

Achieving this level requires a lengthy apprenticeship, years of experience, and passing a rigorous written and practical examination .