Specialism or/vs speciality

I had never heard of specialism until I encountered it in some British professional bodies' databases I was researching. I had thought it was a fake word because speciality would be the noun we use for what somebody specialises in.

Is there any distinction between specialism and speciality? Or may I start boasting about how "toast is my specialism in the kitchen"?

Solution 1:

I, as a British English speaker, would use speciality for something like your most successful dish, and specialism for the area of study an academic concentrates on, or the branch of medicine a specialist works in.