Rosemary roast lamb with witlof gratin

1.Preheat oven to 200C. Bruise one garlic clove with the flat of a knife, combine in a small saucepan with cream and rosemary sprig and simmer over medium heat until slightly reduced (3-5 minutes), set aside.

2.Meanwhile, heat two-thirds of the butter in a large frying pan until starting to foam. Sprinkle sugar over cut sides of witlof, then cook, cut-side down, until golden (1-2 minutes). Transfer, cut-side up, to a 1-litre ovenproof baking dish. Strain cream mixture through a coarse sieve over witlof and season to taste.

3.Combine breadcrumbs, parmesan, one-third of the oil and half the rosemary in a small bowl, toss to combine, season to taste then scatter over witlof. Dot with remaining butter and roast until golden and bubbling (15-20 minutes).

4.Meanwhile, pound remaining garlic cloves, remaining rosemary and 1 tsp sea salt flakes in a mortar and pestle until a coarse paste forms. Add half the remaining oil and set aside. Heat remaining oil in a large frying pan over high heat, add lamb rumps, season to taste, and cook, turning occasionally, until golden on each side (1-2 minutes). Top with garlic mixture and roast until cooked to your liking (8-10 minutes for medium-rare). Set aside to rest (8-10 minutes), then slice and serve with witlof gratin.