Braving sub-zero temperatures, Paul Hollywood is in St. Petersburg, sampling layered Honey Cake and Vatrushka, a delicate curd tart. Yet it's the Russian pies, with intricate pastry patterns covering sweet and savory fillings, that steal his heart.

In Copenhagen, Denmark, Paul Hollywood meets Mette Blomsterberg, a local baker and celebrity. She teaches him how to make Kranskake, a tower of delicious almond cookies, that's easy to make, yet makes an impressive centerpiece.