24/10/2025
The Best Moist Banana Cake
This recipe makes a soft, flavorful sheet cake that stays moist for days.
Yields: One 9 × 13-inch sheet cake
Prep Time: 20 minutes
Bake Time: 30–35 minutes
Ingredients for the Banana Cake
* All-Purpose Flour: 2 ½ cups
* Baking Soda: 1 teaspoon
* Baking Powder: 1 teaspoon
* Ground Cinnamon: 1 teaspoon
* Salt: ½ teaspoon
* Granulated Sugar: 1 cup
* Light Brown Sugar, packed:½ cup (for extra moisture and flavor)
* Vegetable Oil (or Canola Oil): ¾ cup
* Large Eggs: 3, at room temperature
* Vanilla Extract: 1 teaspoon
* Buttermilk:½ cup (at room temperature)
* Substitute: Combine ½ cup of whole milk with ½ teaspoon of white vinegar or lemon juice. Let stand for 5 minutes before using.
* Very Ripe Bananas, mashed: 1 ½ cups (about 3-4 medium bananas)
Ingredients for the Cream Cheese Frosting
* Full-Fat Cream Cheese, softened: 8 ounces (1 block)
* Unsalted Butter, softened: ½ cup (1 stick)
* Powdered Sugar (Icing Sugar), sifted: 3 cups
* Vanilla Extract: 1 teaspoon
* Pinch of Salt
* Chopped Walnuts or Pecans: for garnish (optional)
Instructions
1. Prepare and Mix the Cake Batter
* Preheat & Prep: Preheat oven to 350°F (175°C). Grease and flour a 9× 13-inch baking pan.
* Combine Dry Ingredients: In a medium bowl, whisk together the flour, baking soda, baking powder, cinnamon, and salt. Set aside.
* Mix Wet Ingredients: In a large bowl, whisk together the granulated sugar, brown sugar, vegetable oil, eggs, and vanilla extract until well combined.
* Add Wet & Dry: Add the dry ingredient mixture to the wet mixture and stir just until combined.
* Fold in Banana: Gently fold in the buttermilk and the mashed bananas. Mix until the ingredients are just incorporated—a few small lumps are fine, but do not overmix.
* Bake: Pour the batter into the prepared pan and spread evenly. Bake for 30–35 minutes, or until a wooden skewer inserted into the center comes out clean.
* Cool: Let the cake cool completely on a wire rack before frosting.
2. Make and Apply the Frosting
* Cream Butter & Cheese: In a large bowl, use an electric mixer to beat the softened cream cheese and butter until the mixture is light and smooth.
* Add Sugar: Gradually add the sifted powdered sugar, one cup at a time, mixing on low speed to incorporate, then beating on medium speed until smooth and fluffy.
* Finish: Beat in the vanilla extract and salt. If the frosting seems too thick, add a splash of milk or heavy cream.
* Frost & Garnish: Once the cake is completely cool, spread the frosting evenly over the top. Garnish with chopped nuts, if desired.
* Store: Store the finished cake in the refrigerator due to the cream cheese frosting.