To operate as a food business you would need to register with your local Environmental Health, who would be based in your district council. They are usually quite helpful. I have separate premises for food production but I know a fair few people who do operate out of their home kitchen. Environmental health should inspect your premises, I don't think they are too stick but they are keen on you having 2 sinks one for food washing and one for hand washing. At least my ones are. Also you would need a food safety level 2 certificate, which you can get by attending a 1 day course, of the most basic hygiene stuff. When I went on my one there was a fellow there who didn't even speak English, his son was sort of translating for him, and he passed. So that shouldn't be a problem. Hope that is at least of some help. Ben