Directions

1. *Make sour milk by placing a tablespoon of lemon juice in a one cup measure, fill with milk. Set aside.
2. Cream sugar and margarine. Beat in eggs. Sift dry ingredients together. Alternately, add 1/3 flour mixture, then 1/2 milk mixture until mixed. Add vanilla and lemon juice.
3. Pour 1/2 batter into a large greased tube pan. Sprinkle 1/2 of cinnamon sugar on batter. Add second 1/2 of batter. Top with remaining cinnamon sugar.
4. Bake at 350 degrees F for 40-45 minutes.