What is this ?

We have been clearing out Neil's kitchen cupboards.

We found this piece of cookware.

A thick pot with a terracotta insert.

There were a pack of skewers in the bubblewrap






Has anyone any idea what it might be, we have tried searching and cant find anything similar - but I do want a terracotta pig grill....

No packaging, no recipe book....

But we do now have lots of juicers, and all sorts of chopping things.