A special episode focusing on comfort food. Helen Lawal travels to Tanzania to discover the secrets behind vanilla ice cream, Kate Quilton discovers the surprising reason some of Britain's best-loved biscuits are punctured with holes, and Jimmy Doherty investigates how fish fingers are made and compares the prices for fresh and frozen pizzas. Plus, Matt Tebbutt reveals what pork pie jelly is actually for.

Jimmy Doherty hosts a Christmas party at his farm, and the team investigates the secrets behind the food that will be on people's tables over the holiday period. Amanda Byram exposes the surprising truth about turkey crowns, Kate Quilton shares the trick to making the ultimate Christmas cake, Briony Williams investigates the classic starter of prawn cocktail, and Matt Tebbutt finds out just how they get the cranberries into fruity cheese.