Oeufs en gelée is a classical garde manger showpiece in which soft-poached eggs are suspended in crystal-clear aspic within individual moulds, often garnished with tarragon leaves, truffle slices, or ham julienne to create an elegant, self-contained cold first course. The eggs (Gallus gallus domesticus) must be impeccably fresh — no more than 3 days old — as the albumen's viscosity decreases with age, resulting in ragged whites. Poach in water acidulated with 15 ml white wine vinegar per litre at 80–82°C for exactly 3 minutes and 30 seconds to achieve a fully set white with a fluid, molten yolk. Transfer immediately to an ice bath at 0–2°C to arrest cooking. Trim any trailing wisps of white with scissors for a clean, ovoid shape. The aspic — a fully clarified fond blanc de volaille or veal consommé set with gelatin at 3–4% concentration — is cooled to 28–30°C, just viscous enough to coat evenly without running. Begin by pouring a 5 mm base layer of aspic into each chilled dariole mould or oval ramekin and refrigerate for 10 minutes until just set. Arrange decorative garnish on this layer: blanched tarragon leaves (Artemisia dracunculus), truffle diamonds (Tuber melanosporum), or thin-cut jambon de Paris. Set garnish with another thin layer of aspic and chill 10 minutes. Place the trimmed poached egg, yolk-side down, in the centre, and fill the mould to the brim with aspic at 28–30°C. Refrigerate for minimum 4 hours. To unmould, briefly dip the exterior in warm water at 35°C for 3–5 seconds, invert onto a chilled plate, and serve immediately. When cut, the yolk should flow in a controlled stream, contrasting with the trembling clarity of the surrounding gelée.
{"Use eggs no more than 3 days old for tight, cohesive whites during poaching","Poach at 80–82°C for 3.5 minutes — yields set whites with a fully fluid yolk","Build layers sequentially: base aspic, garnish, second aspic layer, egg, final fill","Aspic temperature of 28–30°C ensures even coating without melting set layers","Unmould with a brief 3–5 second warm water dip — prolonged heat melts the gelée"}
{"Crack each egg into a fine-mesh strainer first to shed the loose outer albumen for a cleaner poach","Use oval dariole moulds for the most elegant presentation — the shape echoes the natural egg form","Work in a cold room or near a blast chiller to accelerate setting between aspic layers","Prepare moulds a day in advance through the garnish stage, adding eggs and final aspic on the day of service"}
{"Using old eggs with thin, watery albumen that produces ragged, stringy whites","Over-poaching the egg, resulting in a fully set yolk that lacks the desired flowing center","Pouring aspic too warm, which melts the decorative garnish layer and displaces set elements","Failing to trim the poached egg neatly, leaving trailing wisps visible through the clear aspic","Unmoulding with water that is too hot, causing the aspic surface to melt and lose its gloss"}
Escoffier, Le Guide Culinaire (1903); Larousse Gastronomique; Saulnier, Le Répertoire de la Cuisine