I saw Yepkoo "cooked" a nice soup with morphs in the other thread
I figured I'd share this useful link in relation. It's a free Caustics Generator:
https://www.cathalmcnally.com/news/free-caustics-generator/You can generate various animated maps and slide them into the displacement channel to get nice liquid effects.
(it generates tile-able sequence of images, which could be assembled into video in any NLE)
Choose color 128, 128, 128 for the displacement type maps. The rest of the settings could be easily figured out.
Here are 2 versions of boiling meal made with maps generated in Caustics Generator.