Although the recipe is usually kept secret, Ren Behan, author of Sweet Polish Kitchen, has found a way to make Polish gingerbread biscuits from the town of Torun at home.

Method. Step 1 Put the honey, sugar and butter into a small pan, whisk together and heat gently until melted. Set aside. Step 2 Combine the dry ingredients in a large bowl, along with the egg yolks.