The most effective way to reduce the saltiness of potato soup is to dilute it with additional liquid. Adding unsalted broth, water, or even milk can help to balance out the saltiness.
Here are some additional tips for fixing overly salty potato soup:
- Add a raw potato: While a potato won't magically absorb salt, it can help to dilute the saltiness and add a touch of starch, which can thicken the soup. Allow the potato to simmer in the soup until almost cooked through.
- Incorporate dairy: Dairy products like milk, cream, yogurt, or sour cream can help to balance out the saltiness. The fat and protein in these ingredients can coat your tongue and reduce the perception of saltiness.
- Add acidity or sweetness: A splash of vinegar, lemon juice, or even a touch of sugar can help to counteract the saltiness.
- Fresh herbs: Fresh herbs like parsley, basil, or thyme can add flavor and mask the saltiness.
Remember, it's best to add ingredients gradually and taste as you go to avoid over-correcting the flavor.