Interior designer Laurence Llewelyn-Bowen drops by for lunch and turns Prue's kitchen into an art gallery with a display of his latest collection of paintings, but what will someone who confesses to never cooking himself arrive at the table with? Meanwhile, Prue's husband John heads out into the grounds to plant a tree he hopes will stand for generations, while she decides to make a chocolate mousse cake - with the addition of pink peppercorns