Difficulty: 4/5
The day before: Liver maceration
Preserve the foie gras in its intact form—do not separate the lobes, disgorge, or denerve. Carefully scrape away any green traces of gall using a small paring knife. Season all surfaces with 8 g fine salt and 2 g white pepper, then place in a soup plate and refrigerate overnight.
The next day: Cooking the foie gras
Gently melt the duck or goose fat in a terrine over low heat or in a preheated oven at 160°C (th. 5) until barely simmering. Let the foie gras temper at room temperature for 1 hour. Submerge and cook at the same temperature for 15 minutes, turning halfway. Lift out with a slotted spoon onto a flat plate, cover tightly with aluminum foil, cool, and refrigerate overnight.
Finishing and presentation
In one saucepan, dissolve 15 g instant jelly powder in 25 cl cold water and bring to a boil. In a second saucepan, simmer 10 g caster sugar and 4 tablespoons wine vinegar for 2 minutes until syrupy and caramel-colored. Combine with the jelly mixture, add 1 teaspoon Armagnac, and chill over ice, stirring until it begins to set.
Place the chilled foie gras on an oval dish. Spoon half the jelly over it, sprinkle evenly with 5 g cracked peppercorns (mignonette pepper), then coat with the remaining jelly. Refrigerate for at least 1 hour. Present whole at the table, slicing into 1 cm thick portions. Serve with its shimmering jelly and toasted country bread.
Expert tips for storage
This foie gras keeps for 1 month in the fridge: After cooking and draining, wrap tightly in foil to match its shape, return to the terrine topped with melted fat, and refrigerate. It retains perfect texture—serve plain or with this pepper jelly.
Source: Legendary Michelin-starred chef Michel Guérard, Eugénie-les-Bains. Foie gras courtesy of Fabienne Labeyrie.
