Can I open my own snack bar with online recipes?
Yes, because the food is copyrighted, as long as you can make that taste, but if others already have a brand, it won't work. You have to change your name. For example, you can imitate Jason Wu Duck Head, but if you open a shop without authorization, you are called Jason Wu Duck Head. If others know that you are infringing. It doesn't matter if you are a vegetable.