Rev Richard Coles: "I'm doing a millionaire shortbread, but I don't think this should be limited to millionaires, so I'm going to do an alternative for people on a budget. So this is 'mixed economy shortbread'."

Voice Over: "Richard's egalitarian bars will layer shortbread and caramel topped with chocolate. He's decorating one half with gold and the other with a sprinkling of sea salt.

Prue Leith: "You know, I like your idea, because I find millionaire shortbread, too sweet."