It's an industry worth over three billion pounds in the UK, and research shows sales of chocolate continue to grow.
Parts of the South have a rich chocolate history dating back decades. But while there are some industry success stories, there are also tales of shops closing down and production lines grinding to a halt across the country.
During chocolate week we've been looking into how production has changed over the years, and why the little treat is such a big hit.
- Watch Matt Price's report below: