Step 1

For the banana cake: Preheat the oven to 350 degrees F. Grease and flour a 9-inch round cake pan.

Step 2

In the bowl of an electric mixer, combine the butter, brown sugar and granulated sugar. Mix on medium-high speed until light and fluffy, about 5 minutes.

Step 3

Meanwhile, sift the flour, baking soda, baking powder, cinnamon and salt into a medium bowl. Set aside.

Step 4

Add the bananas to the butter mixture and mix until combined. Let the mixer do the work of mashing for you. Add the eggs one at a time and mix until well combined. Mix in the yogurt and vanilla. Turn the mixer to low and add the dry ingredients until just combined. Do not overmix.

Step 5

Pour the batter into the prepared cake pan. Bake until a cake tester or toothpick comes out clean, 45 to 50 minutes. Cool in the pan for 5 to 10 minutes, then turn onto a wire rack and cool completely.

Step 6

For the cream cheese frosting: Using the electric mixer on high speed, blend the cream cheese and butter until light and fluffy, 4 to 5 minutes. With the mixer on low, add the confectioners' sugar and then the vanilla.

Step 7

Spread the frosting on top of the cake. Decorate around the perimeter of the cake with raspberries, if desired.