In a bowl, combine flour, 2 cups sugar, baking powder and salt. Combine eggs, oil, orange juice and vanilla; add to flour mixture and mix well.
In a bowl, toss apples with cinnamon and remaining sugar. Spread a third of the batter into a greased 10-in. tube pan. Top with half the apples. Repeat layers. Carefully spread remaining batter over apples.
Bake at 350° for 55-65 minutes or until a toothpick inserted in the center comes out clean. Cool for 15 minutes before removing from pan to a wire rack; cool. Dust with confectioners' sugar.