You could substitute margarine for butter and yogurt for sour cream.
residue from making butter from sour milk
Yes it contains Lactic acid. You can taste it.
Butter
Butter can sour when kept outside during the summer because the warm temperatures can promote microbial growth, leading to the fermentation of the milk fat in the butter. This can result in a sour or rancid taste and odor. It is best to store butter in a cool place to prevent it from spoiling.
Eating a big potato with with butter and sour cream.
Lactobacillus :found in butter milk, yogurt, sour cream.
One way to eat latkes is with sour cream and applesauce . Applesauce with butter and cinnamon. It's another way! Apple butter!
Milk, cream, sour cream, yoghurt, various cheeses, and butter.
* Sour cream and Chives * Brown gravy * Butter * Shredded cheese * Chicken gravy * Sour Kraut and Polish sausage
The acid found in rancid butter is typically butyric acid. It gives off a strong, rancid smell and sour taste when butter goes bad.
Sour cream represents a fat component, so you can use butter, margarine, vegetable oil.