• 1-1/2 cups very ripe bananas, mashed (about 3-4 medium bananas)
• 1/2 teaspoon lemon juice
• 1/2 cup unsalted butter, softened to room temperature
• 1 cup granulated sugar
• 1/2 cup dark brown sugar, firmly packed
• 1/4 cup sour cream (or full-fat honey vanilla Greek yogurt), at room temperature
• 2 teaspoons pure vanilla extract
• 3 large eggs, at room temperature
• 3 cups all-purpose flour (see Note 1 for measuring)
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1/2 teaspoon fine sea salt
• 1/2 teaspoon ground cinnamon
• 1 cup mini chocolate chips
• 1-1/2 cups buttermilk, at room temperature

• 1-1/4 cups unsalted butter, softened to room temperature
• 3 cups powdered sugar (confectioners’ sugar), sifted
• 3/4 cup Dutch process cocoa powder, sifted (see Note 2)
• 3 tablespoons heavy cream (or whole milk)
• 1 teaspoon pure vanilla extract
• 1/16 teaspoon fine sea salt (or a generous pinch)

• 1. Prepare Oven & Pans: Preheat your oven to a precise 325°F (160°C). Prepare two 9-inch round cake pans by generously greasing them with butter or non-stick spray. Crucially, line the bottom of each pan with a circle of parchment paper (refer to Note 3 for detailed instructions on how to cut perfect parchment rounds). Once the parchment is in place, grease it as well, and then lightly dust the entire interior of both cake pans with all-purpose flour. Tap out any excess flour. This meticulous preparation ensures your cakes will release perfectly from the pans after baking.
• 2. Mash Bananas: In a medium bowl, thoroughly mash the very ripe bananas until no large chunks remain and the consistency is smooth. For an extra quick and efficient mash, you can use a hand mixer. Measure out exactly 1-1/2 cups of the mashed bananas and immediately toss them with the 1/2 teaspoon of lemon juice. The lemon juice helps prevent the bananas from browning further, preserving their fresh appearance and flavor.
• 3. Cream Wet Ingredients: In the large bowl of a stand mixer fitted with the whisk attachment, combine the softened unsalted butter, granulated sugar, and dark brown sugar. Beat on medium-high speed for 2–3 minutes until the mixture is light, fluffy, and pale in color. This creaming process incorporates air, which is essential for a tender cake. Next, add the sour cream and vanilla extract, beating until just combined. Add the eggs one at a time, beating well after each addition to fully incorporate before adding the next. Finally, stir in the mashed bananas until evenly distributed. Scrape down the sides of the bowl as needed to ensure everything is well mixed.
• 4. Combine Dry Ingredients & Prep Chocolate Chips: In a separate large bowl, whisk together the measured all-purpose flour (remember to spoon and level!), baking powder, baking soda, salt, and ground cinnamon until thoroughly combined. This ensures even leavening and seasoning throughout the cake. In a small bowl, place the mini chocolate chips and add about 1 tablespoon of flour. Shake them around until they are lightly coated. This small step is crucial as it helps prevent the chocolate chips from sinking to the bottom of the cake during baking, ensuring an even distribution. Add the floured chocolate chips to the other dry ingredients and stir gently to combine.
• 5. Combine Wet & Dry Mixtures: With the stand mixer set on low speed, slowly add approximately one-third of the dry flour mixture to the wet ingredients. Mix just until combined. Then, add one-third of the buttermilk and mix until just incorporated. Repeat this process with the second and third portions of the flour and buttermilk, alternating between them. It is very important to mix only until the ingredients are just incorporated; overmixing the batter can develop the gluten in the flour, resulting in a tough and dense cake. Stop mixing as soon as no streaks of dry ingredients are visible.
• 6. Bake the Cakes: Evenly divide the prepared cake batter between the two greased and floured 9-inch round cake pans. Place the pans in the preheated oven and bake for 45–50 minutes, or until a wooden toothpick inserted into the center of the cakes comes out clean or with just a few moist crumbs attached. Avoid opening the oven door too early, as this can cause the cakes to sink. Once baked, allow the cakes to cool in their pans on a wire rack for 15 minutes. This cooling period helps the cakes set and makes them easier to handle. After 15 minutes, carefully invert the cakes onto the wire cooling rack to finish cooling completely. It is absolutely essential that the cakes are fully cooled before you begin frosting them; frosting warm cakes will result in a melted, runny mess.
• 7. Prepare the Milk Chocolate Frosting: While the cakes are cooling, prepare the rich milk chocolate frosting. In the bowl of a stand mixer fitted with a paddle attachment (or using a hand mixer), beat the softened unsalted butter on medium speed for 3–4 minutes until it becomes light and creamy. Gradually add the sifted powdered sugar and sifted Dutch process cocoa powder to the butter, starting on low speed to avoid a cloud of powder, then increasing to medium once combined. Mix until smooth. Next, add the heavy cream and vanilla extract. Beat until the frosting is light, fluffy, and spreadable. If the frosting appears too thin, you can add more sifted powdered sugar, up to 1 cup, a tablespoon at a time, until you achieve your desired consistency. If it’s too thick, add more heavy cream, 1 teaspoon at a time, up to 2 tablespoons. Finally, add the pinch of salt. If you find the frosting to be overly sweet, an additional dash of salt can help to balance the flavors beautifully.
• 8. Assemble and Frost the Cake: Once the cake layers are completely cool, inspect them. If they have domed tops, carefully level them off using a sharp serrated knife or a specialized cake leveler. This creates a flat surface for stable stacking and a professional appearance. To begin assembly, smear a tiny dab of frosting in the center of your cake stand or serving plate; this acts as an adhesive to prevent the bottom layer from sliding. Place the first cake layer on the stand, bottom side up, for a flat and stable base. Using an offset spatula or a knife, spread an even layer of the creamy chocolate frosting over the top of this first layer. Carefully place the second cake layer on top, this time with the top side up. Frost the top and sides of the entire cake, aiming for a smooth, even coating. If desired, you can decorate the frosted cake with additional mini chocolate chips or other garnishes. Slice and serve this delectable Banana Chocolate Chip Cake to enjoy!

Note 2: Dutch Process Cocoa for Frosting
For the best flavor and texture in your chocolate frosting, it is highly recommended to use Dutch-process cocoa powder, rather than natural cocoa powder. Dutch-process cocoa has a richer, less acidic flavor and a darker color, contributing to a more decadent and smoother chocolate frosting.

Note 3: How to Create Perfect Parchment Paper Rounds for Cake Pans
Ensuring your cake doesn’t stick is paramount. Follow these simple steps to make perfect parchment paper rounds for the bottom of your cake pans:

1. Tear off a sheet of parchment paper that is slightly larger than the diameter of your cake pan.
2. Fold the parchment paper in half, then fold it in half again, creating a square.
3. Fold this square into a triangle. Then, fold the triangle in half once more.
4. Hold the narrowest point of the folded triangle at the exact center of the bottom of your cake pan. Extend the paper towards the edge.
5. Using a pair of scissors, cut the parchment paper along the curve where it meets the edge of the cake pan.
6. Unfold the parchment paper, and you will have a perfect circle. Press this circle into the bottom of your greased cake pan.

Attribution: This incredible Banana Cake recipe has been lovingly adapted, with explicit permission, from the renowned Sally’s Baking Addiction Cookbook.

Nutrition Note: The provided nutrition information for this recipe includes the luscious chocolate frosting. Please note that all nutrition information is an approximation.

Additional Storage Advice: For optimal freshness, keep the cake in an airtight container. At room temperature, it will stay fresh for up to 3 days. If you need to store it longer, it can be refrigerated in an airtight container for up to a week. For extended storage, wrap individual slices tightly and freeze for up to 3 months, then simply thaw at room temperature before enjoying.

Nutrition Information (Estimated Per Serving)