The Double Big Mac is returning to McDonald’s this week. (McDonald’s) For those with a sweet tooth, the Crunchie McFlurry will be making a return much to the delight of fast food fans who have been calling for it’s return.. Made from creamy and luxurious vanilla ice cream which is delicately swirled with Cadbury Crunchie pieces and a honeycomb sauce the new dessert will cost £1.39 for a …