Slow-roast lamb with cinnamon, fennel & citrus

1. step 1
2. Put the lamb into a large food bag with all the juice and marinate overnight.
3. step 2
4. The next day, take the lamb out of the fridge 1 hr before you want to cook it. Heat oven to 220C/200C fan/gas 7. Take the lamb out of the marinade (reserve remaining marinade) and pat dry. Rub with half the oil and roast for 15-20 mins until browned. Remove lamb and reduce oven to 160C/140C fan/gas 3.
   1 hour15–20 minutes
5. step 3
6. Mix the zests, remaining oil, honey, spices and garlic with plenty of seasoning. Lay a large sheet of baking parchment on a large sheet of foil. Sit the lamb leg on top, rub all over with the paste and pull up the sides of the foil. Drizzle marinade into base, and scrunch foil to seal.
7. step 4
8. Roast for 4 hrs, until very tender. Rest, still wrapped, for 30 mins. Unwrap and serve with juices.
   4 hours30 minutes

Cooking notes

When scaling protein-led dishes, weigh the meat rather than counting pieces, and remember that the pan size limits how much you can sear at once.

For volume-to-weight conversions of any ingredient — flour, sugar, butter, salts — use the ingredient converter. To translate the recipe's oven temperature between °C, °F and gas mark, see the temperature converter.

When you scale this recipe up or down, remember that cooking time does not scale linearly. A doubled cake takes longer, but not twice as long; a doubled soup takes roughly twice as long. The cooking-time guide gives sensible starting estimates by dish geometry.