Potage Germiny — Sorrel and Egg Yolk Soup

Potage Germiny is one of the most refined and delicate soups in the classical French repertoire — a consommé-based soup thickened with a generous liaison of egg yolks and cream, flavoured with a chiffonade of fresh sorrel that provides its signature tangy, lemony sharpness. Created at the Café Anglais in Paris (the same establishment that gave us pommes Anna), this soup demands technical precision in the liaison stage and impeccable ingredients, as there is nothing to hide behind — no roux, no purée, just crystal-clear broth transformed by eggs, cream, and the singular acidity of sorrel. Begin with 1.2 litres of excellent consommé or very clear, well-flavoured chicken broth. Wash 200g of fresh sorrel, remove the central stems, and cut into fine chiffonade (thin ribbons). Melt 30g of butter in a pan and cook the sorrel for 2-3 minutes — it will melt down dramatically, turning from vivid green to an olive-khaki as the oxalic acid reacts with the heat. This colour change is inevitable and correct; the flavour intensifies even as the colour shifts. Add the wilted sorrel to the hot broth. Prepare the liaison: whisk 6 egg yolks with 200ml of double cream until smooth. This is a particularly generous liaison — the finished soup should be almost custard-like in its richness. Temper by whisking a ladleful of hot broth into the yolk mixture, then another, then pour the tempered liaison back into the pot, stirring constantly with a wooden spoon. Heat over the lowest possible flame, stirring continuously, until the soup thickens enough to coat the back of the spoon — 82-84°C, no more. At the first sign of any curdling or graininess, remove from heat immediately and strain. The finished Germiny should be pale gold with flecks of olive-green sorrel, silky as satin, with a flavour that is simultaneously rich (from the yolks and cream), bright (from the sorrel's oxalic acid), and deeply savoury (from the consommé base). Serve immediately in warm bowls — this soup waits for no one, as the liaison continues to thicken and can curdle if held.

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