Preheat oven to 350°. Beat first 5 ingredients at high speed with electric mixer for 3 minutes. Pour half the batter evenly into 2 greased and floured 8 x 4 loaf pans. In a small bowl, stir together cinnamon and sugar. Sprinkle half of the cinnamon and sugar mixture evenly over batter. Pour remaining batter evenly into loaf pans and sprinkle remaining cinnamon and sugar mixture over both. Gently swirl sugar into batter with a knife. Bake for 45 minutes.
Loaves make great gifts and can be stored in the freezer but must be well-wrapped.
