Cooking Fever Auto Generate Gems with MacroDroid

Bypass patch on newest update
No root required
Download oldest apk version of game
Because the time syncs with the server in the newest versions, this method is impossible unless you download the version without the patch. Just keep the internet off when installing the oldest version, and make sure to disable the background internet/data usage for cooking fever, or whatever other game you want to play.
Automating this process with MacroDroid also takes away the burden of having to manually change the date.
Below is a video showing how to change settings to completely disable access to the internet:
• Cooking Fever Play Off...

[@Sim-dm4kr]

For some reason it still had some data usage after I disabled it, which patched that again. Maybe try pressing force stop every time you decide you're done and connect back to the internet.