Slug and Lettuce, the troubled bar chain owned by SFI Group, has become the first bar company in the UK to serve Duchy Selections Cumberland sausages, made on Prince Charles' estate. Slug and Lettuce will serve the sausages in its new spring menu which is set to be launched at the end of April. The bangers will be accompanied with créme fraiche and crushed new potatoes. Duchy Original products promote sustainable farming and food production. All the profits are donated to the Prince of Wales’s Charitable Foundation.