Mayo
Yogurt.
To help rise the concentration of the muffin, I highly recomend you use Mayonaese instead as it adds a much more satisfing result
No, they are too different.
If a recipe is calling for a brand name of a very basic ingredient, they are trying to sell that product. Sour cream is sour cream.
You can use Sour Cream of Mayonnaise as a substitute of yogurt.
Yes
Sour cream represents a fat component, so you can use butter, margarine, vegetable oil.
Greek yogurt!
you wont get the same taste from using double cream instead of sour cream and the consistency might be a bit off.
No, sour cream is not an acceptable substitue for eggs in any recipe. They have different properties and different purposes.
Yes, although sour cream has a slightly tangier flavor since it's been made with active cultures (like yogurt).
Nope. Sour cream has to do with One certain ingredient and Sour ice cream is like sour milk but the sour in the ice cream is the milk:)