Have you checked the FSA’s website . They have a guide for starting a food business. https://www.food.gov.uk/business-guidance/starting-a-food-business#managing-food-safety

Hi, hopefully you will join us on our Be Your Own boss programme in April. We will have guest speakers including Trading standards who will guide you through the licencing etc. We have an accountant who will discuss business structure and set up. We have talks from an existing business owner and the two day workshop covers business planning.

I have e-mailed a guide provided by the Bucks Libraries from a resource called Cobra on setting up a Craft Bakery.

I wish you well with you new venture.