@jakedduck1 There is no way I would make that recipe with onion soup mix, that's so salty. I think some good options have been mentioned though with other dressings. Before I buy a new salad dressing I always check the sugar and sodium content. There are a couple of excellent raspberry ones, one being the Whole Foods brand. The Paul Newman brand isn't too bad either. There are others but I can't remember the names of them.
I have no idea if there are low-sugar cranberry jellies, I make my own. It's very easy and it is very tart. It does have sugar in it though. My son will literally eat it by the bowlful.
I try to stay away from many prepared foods, and if I do buy something that is prepared like salad dressing I always check the nutritional info. Prepared soups of any kind are basically not an option.
JK