How to develop food from scratch? Some research and development foods are launched by the main line, while others, it should be noted that there is an exclamation point bubble on the NPC's head when it enters the store. Click, there is a chance to give you research and development tasks.
Every city has several desserts to be developed. Basically, it needs to be developed many times, that is, we should always pay attention to NPCs with exclamation marks in the store.
Having an exclamation point will not only make you develop, but also give you a small task of making a designated dessert, and there are extra rewards.