To make the dough, place all the ingredients into an electric mixer (except the milk) and mix together. Next, add in enough of the warm milk and mix into a soft dough. Continue to knead in the machine or by hand for 5 minutes. Place into a bowl, cover and allow to rise till double in size. When ready, roll out on a floured work top to a large rectangle. Mix together the almond, caster sugar and beaten egg to a paste and spread all the dough. Sprinkle over the dried cranberries, walnuts and cinnamon. Fold in half and press together well. Cut into strips and twist and roll into a ball. Place into greased muffin tins, brush with the melted butter and allow to rise again. Bake in the oven at 200°C for 20-25 minutes. Meanwhile, make a glace by mixing together the icing sugar, vanilla and a little warm water. Use to glaze the buns immediately as they come out of the oven and decorate with extra chopped walnuts and lemon zest.