No, sour cream does not contain eggs. Not a single yolk, not a drop of white, nothing.
It’s made from just two simple ingredients: cream and lactic acid bacteria (the friendly little guys that make it tangy). That’s it! So breathe easy, egg-avoiders and curious cooks—your taco night is safe.
So, What Is It Actually Made Of?
Think of sour cream as cream that took a tangy bath. You start with fresh, pasteurized cream, add a bit of bacterial culture, and let it sit.
The bacteria eat the natural sugars in the cream, producing lactic acid. That acid thickens the cream and gives it that signature zing we all love. No eggs, no magic, just a tiny science party happening in your fridge.