I would recommend more research. They always say ignorance of the law is no excuse, and if you are caught operating out of unlicensed facility, you can be denied a future license. Most cities, especially the big ones, have their own health department, Houston & Austin included. You generally have to follow the state health regs first, and add on any that are required by the city as well. I've been looking into starting my own business and have found that I can't even utilize the restaurant kitchen of a friend. Requirements for a commercial kitchen for food products consumed off-premises are far more stringent than those even for restaurants. I have resorted to renting bakery space on an hourly basis, so I have a place to hang my license but will still decorate at home on the DL.
Also (not to rain on your parade-I hope for your sake it really is that easy) make sure you are following zoning laws, too, although as long as you don't have exterior signage or a lot of foot traffic that shouldn't be a problem. In Austin, you can't even have an addition for the sole purpose of operating a home business without a zoning variance, so adding on a 2nd kitchen is out of the question for me too.
Good luck.
AliThat is the saving grace of humor, if you fail no one is laughing at you
AliThat is the saving grace of humor, if you fail no one is laughing at you