There are so many versions of Irish Stew. Some people say you should just have white vegetables in it, some add 1 or 2 tbsp of pot barley in at the start with the stock.
* If the potatoes are quite small,add them in 20-30mins after the stew starts cooking. * To degrease the juices, if you do not have a maisgras, add a couple of ice cubes to the strained liquid - the fat should rise up to the top, spoon it off and discard. * If you like, you could thicken the juices with some roux