Heat oven to 350°F. Grease and flour 12-cup fluted tube cake pan or 10-inch tube pan. In large bowl, combine sugar and margarine; beat until light and fluffy. Add eggs 1 at a time, beating well after each addition. Gradually add 2 cups powdered sugar; blend well. By hand, stir in flour and remaining cake ingredients until well blended. Spoon batter into greased and floured pan; spread evenly.