I worked my magic so you can enjoy this delicious zero-guilt cake.

Makes 12 servings.

•  1 stick butter, softened
•  1 1/2 cups granulated sugar
•  1 banana, mashed
•  1/2 cup nonfat Greek yogurt, such as Fage
•  1/2 cup fat-free sour cream
•  3 eggs
•  3 egg whites
•  3 cups oat flour
•  1/2 teaspoon baking soda
•  1/2 teaspoon baking powder
•  1/4 teaspoon salt
•  1 teaspoon vanilla extract
•  cooking spray
•  3 cups fresh mixed berries
•  2 tablespoons powdered sugar

Preparation

1. Preheat oven 325 degrees.
2. Cream butter and sugar in a bowl with an electric mixer on medium speed for 1 minute or until well-incorporated.
3. Add banana, yogurt and sour cream; beat on low speed until combined.
4. Whisk together eggs and egg whites in a separate bowl.
5. Sift oat flour and the next 3 ingredients (baking soda, baking powder and salt) in a large bowl.
6. Add butter and egg mixtures alternately into oat flour mixture.
7. Add vanilla, and pour batter into 10-inch tube pan coated with cooking spray.
8. Bake 1 hour or until a wooden pick inserted into cake comes out clean.
9. Slice into 12 pieces and serve each slice toasted and topped with 1/4 cup berries and 1/2 teaspoon powdered sugar.