Caviar is consumed raw.

The best time to eat caviar is for breakfast.

We prepare a piece of toast with some butter on it and put a small amount of caviar on it

Full details are in the link below

cocaviar.ir/blog/khordancaviar

Also, the minimum daily consumption of caviar is 10 grams.

Caviar is categorized into types based on the origin and processing method. There is Russian caviar, Iranian caviar and American Caviar. Malossol, salted caviar, pressed caviar and pasteurized caviar are different types of processed caviar.

Fish eggs

sturgeon (big fish)

There isn't one, because caviar is a food.

Or you could just put anti-caviar.