After shedding a series of food assets - and announcing earlier this month plans to quit spreads - Unilever's longer-term strategy for the sector is always the subject of debate within the industry. This week, however, the consumer goods giant has made what is for the business a rare move: adding to its foods division through M&A. The Hellmann's mayonnaise owner has bought fledgling US condiments maker Sir Kensington's. Dean Best caught up with Sir Kensington's co-founder Scott Norton to find out more.