BATTER:

2 cups all-purpose flour
3/4 cup sugar
4 tsp. baking powder
2 tsp. ground cinnamon
3/4 tsp. salt
1 cup buttermilk
1/4 cup vegetable oil
2 egg whites
1 egg
2 tsp. vanilla

Preheat oven to 350°F. Coat a 9x5-inch loaf pan with non-stick cooking spray (Pam).

In a large bowl, mix flour, sugar, baking powder, cinnamon and salt. Add buttermilk, oil, egg whites, egg and vanilla.

Beat with an electric mixer on medium speed for 3 minutes. Pour the batter into the prepared pan.