12 hours ago, liuzhou said:However, I was looking for something specific to carp roe.
Ah, OK.
How about taramasalata, traditionally done with carp roe,* I believe?
I don't know for sure but I might think carp roe could be treated much the same way as cod roe?
When I was growing up I liked curried fish roe (that looked much like cod roe, or like what you show) in thickish sauces prepared by the various Mamak & South Indian curry houses in the place I grew up in. It was one of the few ways I liked it as a youth. Simply deep-fried was another way (or pan-fried, as my mother did), plated w/ aromatics and leafy herbs etc and/or something like fried garlic or shallots, eaten w/ other stuff & veggies & rice etc in the course of a meal.
*ETA: Although you'll need to cure/salt and/or smoke the roe first.