Recording Zoom Sessions

What is the best way to record a Zoom session without seeing the participants on the final recording? 

To set the scene: If I want to host and record a Zoom session, I would love the participants to have their cameras on so I can see them. However, I'd also like to record the session but leave the participants off the recording. I don't want to record their faces for privacy reasons, but it helps me see if I'm hitting the mark with my presentation.

I've not managed to work out a way to do this as a Zoom meeting. Can it be done as a Webinar?

Gosh, I hope that makes sense.