Can you subsitute milk with sour cream for mashed potatoes?

It's not recommended to substitute milk with sour cream for mashed potatoes. Sour cream is a dairy product made from fermented cream and has a thick, tangy flavor. While it can add richness and flavor to mashed potatoes, it is not a suitable replacement for milk.

Milk is a key ingredient in mashed potatoes as it helps to create a creamy and smooth texture. It also provides moisture and helps to bind the ingredients together. Sour cream, on the other hand, is thicker and has a different flavor profile, so it cannot provide the same results in mashed potatoes.

If you are looking for a dairy-free alternative to milk for mashed potatoes, you could try using vegetable broth, almond milk, or coconut milk. These alternatives will provide moisture and help to bind the ingredients together, but they will not have the same flavor as milk.