Delving into his granny’s old recipe book, Gregor reinvents her recipe for traditional shortbread. But he puts a modern twist on it by adding dried apple, a hint of spice and toffee pieces. Hopefully granny would approve! He makes a pudding that showcases the magic and science of baking. His chocolate mousse cake uses the same mixture to make a rich chocolate cake base and a light chocolate mousse topping. Out and about meeting skilled home cooks and bakers, Gregor is treated to a passion fruit surprise pudding and he tastes a recipe using haggis, neeps and tatties but as you’ve never seen them before - in a soup.