The correct answer is C. To inspire readers to experiment in their cooking.
Step-by-step explanation:
In this text, the author focuses on explaining following strictly recipes is not necessary all the time but only in some cases such as baking; this is better explained in "except for baking... you can add ingredients to get creative". Moreover, in subsequent details the author supports the idea people should experiment in their cooking; for example in "try making another one with different..." or "there's no rule that says you have to serve it". In this context, the purpose or intention of the reader is to inspire readers to experiment in their cooking.