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30 June 2026

French onion soup: why slow caramelization changes everything in cooking

French onion soup does much more than warm you up: it reveals a little-known secret of culinary technique. Inherited from 18th-century taverns, this iconic recipe relies on a slow process that radically transforms a humble ingredient. Discover why this ancestral method remains an essential reference in modern haute cuisine.

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Illustration image © TopTenPlay
Symbolbild © TopTenPlay

Long before this soup became a symbol of…

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