Put the flour in a bowl and make a depression in the middle. Heat the milk lukewarm. Crumble yeast into it and mix with 1 teaspoon sugar. Pour into the hollow and mix with some flour. Cover and leave to rise in a warm place for about 15 minutes.
Add the rest of the sugar, yoghurt and butter and work everything into a smooth dough with the dough hooks of the hand mixer. Leave to rise covered for about 1 hour.
Chop the walnuts and knead them together with the cranberries into the dough. Form approx. 12 rolls from the dough. Put them on a baking tray lined with baking paper. Bake in a preheated oven at 240 degrees (gas: level 5-6, fan oven: 220 degrees) for about 20 minutes.
Brush the bread roll with the milk after 10 minutes. Tip: Serve extra cranberry butter with the rolls. Mix 100 g soft butter with 30 g chopped, dried cranberries.