Step 1

Preheat oven to 200°C. Using a small sharp knife, make several deep incisions into the lamb and press a slice of garlic into each slit. Tie securely with kitchen string and spray with oil spray. Sprinkle with salt and pepper.

Step 2

Place lamb on a greased wire rack over a baking dish. Add enough hot water to baking dish until half full.

Step 3

Cook lamb for 25 minutes. Remove from oven and spread with mustard. Return to oven and cook for a further 20 minutes.

Step 4

Rest lamb for 5 minutes before slicing and serving with steamed or baked vegetables.