What is this and how do I get it?
With your previous posts I take it you would want insurance to protect you in case somebody got sick on your baked goods or claimed they 'found a hair' in them.
I think you may want to call the Small business Association in your area and see if they can help you learn how to start your own business. Business licenses, tax identification numbers, insurance, how to start it up, zoning laws are all covered by information the SBA can give you.
Any insurance company that insures business should be able to insure you.