Restaurant City gourmet points can be gained while playing the game, or offline. However, your employees must have more than 0% energy in order to accumulate gourmet points, since they will fall asleep and cannot work otherwise. Here are some articles related to Restaurant City gourmet points.
Restaurant City Levels – A nice chart of how many gourmet points it takes to get to the next level, and what is unlocked once you get there. Many levels give you either a larger restaurant, unlock the ability to hire another employee, or just give you free cash.
Gourmet points per Dish – This article is a discussion of how many gourmet points you can get for leveling up dishes. Each level up your dish goes, you will get more gourmet points. Find out how many here.
Restaurant City Walkthrough – A guide to powerlevel your Restaurant City character quickly. Gain the most gourmet points you can in the shortest amount of time with this guide.
Easy Dishes in Restaurant City – Pick your dishes to serve wisely because once you do, you will need to find ingredients. This is a breakdown of which dishes are easier than others to level up, based on how difficult it is to find the ingredients for them.