I just checked the recipes on allearsnet. There are 3 versions? I have the Cooking with Mickey cookbook from many years ago and that recipe is different from the 3 on allears as it does not have ale in it. I guess the different chefs change it slightly.
One thing I would suggest is that you heat the milk and broth SLOWLY! Heating it too quickly will make the soup "grainy" if that makes any sense. Also using a higher fat milk (not skim) has given me better results.
No matter which recipe you choose, it should be great. I'm jealous - could use a bit of that soup right now!