[MehdiHK]

One solution that seemed to be the best of both is, a take home test followed by pair programming session to add a small feature on top of that, or refactor something, or write tests etc.

Real world challenges needs time to think, often time to refactor after initial working prototype. A take home allows that.

Also the candidate is already relaxed in the pair programming session because it's a familiar codebase. You'll get signal if they didn't write it or wrote something they didn't quite understand.