Recommended · for some experience
How to make PCB using Photoresist Dry Film
Why people recommend it
Pointed to as a full walkthrough of making circuit boards at home with negative dry film resist, including stripping the film afterwards with sodium hydroxide.
Watch for: Needs a negative artwork and sodium hydroxide to hand
In their words
This video demonstrates this process: [video] You'll want to have the Sodium Hydroxide on hand before you begin, because you can't get the film off if you make a mistake.
Amereservant on electronics.stackexchange.com, Nov 2015. CC BY-SA.