1. Spend a lot of time before. Come up with a format that is a little different from other podcasts.
2. Do your research.
Take the time to find a good microphone and editing software.
Google what to think about when recording the sound environment in the room you are sitting in. Google how to post the podcast online
3. Plan the sections before. Let it take time to do research, if you have such a podcast.
Structure the section before - what should we talk about and in what order?
Was something unclear?
Take a retake and then cut off.
The episode gets better then in the end.