Step 1 :In a large roasting pan, add your leg of lamb. With your knife create slits all over the lamb and insert a piece of garlic in each slit.
Step 2 :Season heavily with salt and pepper, drizzle with one half of the divided olive oil, turn the lamb over and again season with salt and pepper, olive oil and season again with salt and pepper.
Step 3 :Add the potatoes around the meat, evenly spread