Skim surface fat carefully (a ladle works). Remove lamb to a warm dish. Simmer sauce uncovered 8–12 min to a light nappé consistency (it should coat a spoon). Whisk in cold butter off heat for gloss. Taste and correct: salt first, then pepper; add a few drops of lemon juice only if needed. Mix gremolata (parsley, lemon zest, garlic, olive oil). Plate: a smooth base (polenta or potato purée) + lamb + lacquered sauce. Finish with a small pinch of gremolata for fragrance and contrast.
Dish type
Notes, time, difficulty, kcal (per serving)
Prep: 30 min | Cook: 2 h 15 min | Total: ~2 h 45 min