Moroccan Lamb Shanks

Lamb shanks cooked in a pressure cooker. I have had my pressure cooker for years and at first I was really frightened of it, but then one winter (not that we get much of a winter here) I decided either to get rid of it or start using it. Never used a recipe, just went with the flow.
Then, I was reading Ron's blog http://themerlinmenu.blogspot.com/ and thought I had better bring the thing out again. Air conditioning on (temps out side were mid 20c's) and I did a bit of research on Google and found Moroccan Lamb shanks. I won't give you the site because I had to change a few things as I didn't have all the ingredients. And this is what I ended up with. Ingredients....
3 large Lamb shanks (fat removed)
1 tablespoon Olive oil.
2 Brown Onion. (finely chopped)
2 Carrots. (peeled and coarsely chopped)
4 Garlic Cloves (chopped finely)
1 litre Chicken stock.
750 gms Sweet Potato (peeled and coarsely chopped)
200 gms pitted Prunes.
2 tsp ground Cumin.
1 tsp ground Tumeric.
2 tsp ground Cinnamon.
1 tsp Sweet Paprika.
Fresh Parsley (to serve)

Method...
Brown and seal the lamb shanks in a little oil and set a side. Fry the onions in the same oil until just clear. Now put the lamb shanks, onions, spices, garlic and the chicken stock in to the pressure cooker. Bring up to pressure and let it steam away for 20 minutes. Release the pressure once it has cooled a little.
Then add all other ingredients and bring back to the boil, 'til the carrots are just cooked. (You might want to check the liquid here, add a little more if needed) The sweet potatoes do thicken the sauce and suck up a lot of the liquid.
Serve with mashed potatoes or Couscous and sprinkle with fresh parsley.
Do hope you enjoy this, now I am off to check Ron's blog again.