Ice cube in a baggie....
Now I'm really pissed off, though -the soup tastes great, but I stupidly used a blend of herbs to make the chicken stock for the base which contained one herb I have found I can't stand the smell or taste of..... and I can still smell it over the awesome taste of the leek, potato and onion soup.
I needed herbs, grabbed the jar, dumped some in (too many really) could immediately smell the rogue -must find out which one that is- so fished most of it back out with a spoon. So the stock simmered and then i strained it and removed all of the herb bits and thought it would be fine. Wrong.