So, why can you substitute yogurt for sour cream in the first place? Well, it's all about the acidity levels, baby! Both yogurt and sour cream have a similar acidity level, which helps to react with the baking soda and create a lovely rise in your baked goods.
Now, here's a fun fact: did you know that yogurt has been used as a substitute for sour cream for centuries in some parts of the world? Yep, our ancestors were onto something! They used yogurt to add moisture and flavor to their baked goods, and it's still a popular substitute today.
But, let's get real for a second - if you're looking for an exact substitute, you might be out of luck. Yogurt has a higher water content than sour cream, which can affect the texture of your final product. It's like trying to replace a Mercedes with a Toyota - they're both cars, but they're not the same.
Sour Cream Vs Yogurt Health at Victor Bartlett blog