I’ve looked into this myself when I have had time and still researching when I have time but thought I would share what I’ve learned so far. The requirements for selling food/baked goods vary from state to state, where I live most edible items that are being sold need to be first baked/cooked in a professional kitchen. The key is to search requirements for selling baked goods in (your state).
Often, what happens is that we run into unscrupulous Internet Marketers (IMs) who have less-than altruistic intentions of extracting money from you rather than helping you to make it. However, this isn't something new. People have been falling for networking marketing, pyramid schemes, and affiliate marketing scams since before the start of the net.