Cast iron skillet:

cuisines of southern Indian.

Bastable oven:

Previously they used a hot flat stone with the cauldron inverted over it to contain the heat - this is much better.

When you say "this" is better, I'm not clear whether you're referring to the bastable oven or the flat stone.



Maintenance:

(unless it's your precious omelet pan (see above))

Nested parens are confusing to non-programmers. I'd switch to "(unless it's your precious omelet pan -- see above)"