@vrauckis Thanks Vytas! It was actually a few different approaches. Houdini for VDB/smooth/offset, then back to a lower-resolution mesh for the melty bits. I also layered in a few flip fluid sims for extra trails, and generated masks for the crystal distribution in Substance Painter.
@kilimanjaroger Appreciate it, Roger! Mix of a few approaches. The brownies are scans by @PolygonSandwich, along with a few other sourced elements. I used Zbrush to sculpt the ice cream base and Houdini to sim melting/syrup!