First, log in every day, because every day the system will automatically ask a question, and if you answer it correctly, you will win a reward, and it is best to choose "ingredients" for the reward, because you can use ingredients to study new recipes or upgrade recipes.
Second, add more friends, because after becoming two-way friends, as long as you go to their kitchen, the system will automatically give away an ingredient, and there is another way to get the ingredient.
Third, be patient, because cooking takes at least six hours (although it is a bit inconsistent with real life)
Fourth, visit your friends often. If there are flies in their kitchen, you can help to swat them off, which will increase your experience. You can also help your friends to season food in the seasoning stage, and you can also gain experience.
Fifth, usually pay attention to accumulate more strength, often read recipes, and make those low-level recipes for upgrading when you have time, so that once you have enough ingredients, you can upgrade at any time without having to do it on the spot.
Sixth, those ingredients that are often used (such as eggs and peppers) are recommended to be locked so that others will not easily replace them. However, everyone knows to lock it, so these ingredients are not easy to change. You got it by accident, so you must keep it.
I hope it helps you, and I wish you an upgrade ~