[mburger]

What about having a discussion on how the candidate would solve a given take home?

You could check if she would think of the required parts. For instance, would she think of unit tests? If she wouldn’t mention tests, you could ask „How would you ensure that your program works as expected?“

Thus, solving the take home theoretically.

[gravypod]

This is a great use of the take home. It's a good interview-starter to get conversation moving.