Every auto chef token is basically one gold bar off the cost of the auto chef in each venue. The game keeps track of them automatically. If you go into a venue and look at the upgrades shop, it might say that venue's auto chef now costs 160 gold instead of 180 because you've collected 20 tokens.
You can eventually get enough tokens to get an auto chef for free. This can, uh, take awhile.
Answers
You can eventually get enough tokens to get an auto chef for free. This can, uh, take awhile.