Place the cake wheat flour, yeast, sugar and salt together in a stand mixer
Add the soft butter and the milk and knead for 6-8 minutes
Add the two tablespoon flour if required. You should have a silky, soft dough but not sticky
Grease a large bowl with oil and rub some oil on the dough
Cover with a clean kitchen towel or cling wrap and keep in a warm place to rise, about 1-2 hours. Should be triple in size
Dust a clean surface with flour and roll out the dough into a rectangle, 33cmx25cm
Brush 1&1/2 tbsp soft butter over the dough. Mix the cinnamon and sugar together and sprinkle on top of the dough
Sprinkle the raisins on top. Roll tightly into a swiss roll shape, lengthwise
Cut into 12 equal pieces. Place in an ovenproof dish, leaving a little space between each. Cover with a clean kitchen towel and allow to rise for 20 minutes
Preheat oven at 180 degrees Celsius. Brush the buns with the remaining 1/2 tbsp butter and bake for 25 minutes
Sift the icing sugar in a bowl and add the tablespoon of milk. Use more milk if required. Pour the glaze over the buns whilst still warm