You cannot sell home-baked goods commercially without a commercial kitchen license.

The Law

For years, Wisconsin had incredibly strict bans on selling any home-baked goods, citing food safety and sanitation concerns. While recent lawsuits have loosened rules for certain non-hazardous items like cookies, selling home-baked pies or cakes commercially still falls into legally perilous territory. The strict rules were largely driven by the powerful commercial food industry lobby.