1 1/3 cups mashed bananas, from about 4 medium bananas
1cup sour cream
1/2cup whole milk
3/4cup California walnuts, chopped
For the frosting:
8 ouncescream cheese, at cool room temperature
1 stick unsalted butter, at cool room temperature
2tsp vanilla extract
2cups powdered sugar, sifted
Chopped walnuts, for garnish
Instructions
Preheat your oven to 350°F. Grease a 9 by 13-inch baking pan really well.
In a medium bowl, mix together flour, baking soda, salt, and cinnamon.
Using an electric mixer, beat butter and sugars until fluffy (about 3 minutes). Add vanilla, then eggs one by one.
On low speed, mix in half of the dry ingredients. Then add mashed bananas, sour cream, and milk. Add the rest of the dry mix. Gently fold in walnuts—don't overmix.
Pour the batter into the pan. Bake for around 35 minutes or until a toothpick comes out clean from the center. Let it cool completely. You can freeze the unfrosted cake for up to 2 months and thaw before frosting.
For the Frosting:
In a clean electric mixer bowl, beat cream cheese, butter, and vanilla until smooth and creamy.
Gradually add powdered sugar on low speed until fluffy.
Spread the frosting over the cooled cake. Sprinkle chopped walnuts on top.
For cleaner slices, refrigerate the cake for 30 minutes before cutting. Store leftovers in the fridge for up to 3 days. Enjoy your cake at room temperature!