Step 1

Preheat the oven to 350 F degrees. Grease or line an 8 x 8 cake pan, set aside.

Step 2

In a medium-sized bowl, whisk together the oat flour, almond flour, baking powder, and salt until combined.

Step 3

In a large bowl, beat or mix the yogurt, nut butter, sugar, eggs and vanilla extract in a large bowl with an electric mixer or whisk until creamy. Beat in mashed bananas and mix on medium for 1 minute.

Step 4

Add the dry ingredients to the wet ingredients until well incorporated. Do not overmix.

Step 5

Pour the batter into the prepared pan. Bake for 25 to 30 minutes or until a knife inserted into the center comes out clean. Remove from the oven and let the bars cool completely before adding frosting.

Step 6

Spread the frosting over the cooled banana bread cake. Top with optional chopped nuts or chocolate chips and cut into bars.

Step 7

Store in the refrigerator in an airtight container for up to 1 week.