Dissolve yeast in milk.Mix dry ingredients. Add wet to dry.Knead till smooth. Place in greased bowl, cover with damp cloth, let double-about 1 hour. For filling: beat margarine add sugar and cinnamon. Punch down dough. Roll into 22"x14" rectangle. Spread filling to within 1/2" of edge. Sprinkle with nuts. With long side, roll up jelly roll style. Cut into 9 equal pieces (this makes very big buns). Grease tube or round pan. Place buns inside and cover with a damp cloth. Let rise 1 hour. Brush top with glaze. Place rack on lowest rack in oven. Bake 325* for 15 minutes. Move rack up 1 level, bake 15 minutes more. Let cool, Mix confectioners sugar with water till slightly thick, drizzle on top of buns, sprinkle chopped walnuts on top if desired. I like to divide the dough into 18 pieces and put it into 2-9" round pans. I find the bigger ones too doughy and these totally Perfect!!!