I'm replaying Witcher 3 and I just noticed that I don't have the Golem's Heart ingredient needed for Enhanced Blizzard. I already did the early main quest where you fight a golem, but it seems that one didn't drop the ingredient.
Which monsters drop golem hearts and where can I find somewhat low-level ones? Are there any other ways to get hold of some golem hearts?
I would also accept cheats or console commands as answer if there is no easy way to get a golem's heart if the one early-game golem doesn't drop one.