This wonderfully retro pud dates back to the 1950s and is a really fun way to round off a dinner party ... the parchment to help you roll the sponge around the ice cream. Use a bread knife ...

Heat the blueberries in a saucepan with the jam. Cool. Make the ice cream into a sausage shape the same length as your Swiss Roll tin, wrap it in parchment and place back into the freezer until ...