I am so stuck stuck. I know her well but then don't iykwim.
And she is very important to me. Aside from me and dh she is ds main care giver and as he has no family where we live like a grandmother to him.
All I can think of is a little potted herb like this? And maybe a gift card? She was a chef like me so not sure about food and don't really know heaps about her personal life or interests.