Heat over to 375 degrees F.

Grease two cake rounds and place parchment paper at the bottom; butter the parchment paper.

In mixing bowl whisk together flour, baking soda and nutmeg. Set aside.

With electric mixer, beat butter for about three minutes until pale and creamy. Add the sugar and continue to beat for another couple minutes.

Add the eggs, one at a time, beating after each addition

On low speed, add the mashed bananas, the sour cream, then the vanillla extract.

Slowly add the flour mixutre until well combined.

Pour batter evenly into the two pans. Bake for about 25 minutes, or until a toothpick comes out dry when inserted in the center.

For the frosting, beat the peanut butter, butter, cream cheese, vanilla extract and powdered sugar until moistened. Add half n half by the 1/4 cup until desired consistency.

To assemble cake, add frosting to top and sides of first cake. Add layer of sliced bananas. Add second cake; frost entire cake. I added one Reese's peanut butter cup on the top, but decorate as you prefer.