Cream the butter and sugar. Add the eggs, one at a time. Add the sour cream and vanilla. Beat until well blended. Sift together the dry ingredients. I usually just blend them instead of sifting. Add them to the creamed mixture. Mix well. Spoon about 1/2 the batter into a greased 10" tube pan. Sprinkle batter with Choc. Chips. I use enough to Almost cover the batter. Spoon the rest of the batter over the Choc. Chips. Sprinkle with remaining Chips and Cinnamon sugar. Bake at 350 for 40-45 minutes or until cake tester comes out clean.
