German Chocolate Banana Cake

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This recipe for German Chocolate Banana Cake features the traditional light chocolate cake with a coconut-banana filling. The filling alone is good enough to eat with a spoon!

German chocolate banana cake on a yellow cake stand

I’ve never been a huge fan of German chocolate cakes. I don’t exactly know why. It’s just a cake that I never gravitated to. I prefer light and fruity flavors when it comes to cake. Nothing too dense or too rich.

I recently discovered a German chocolate cake with coconut, banana, and macadamia filling from Cooks Illustrated and knew that it was going to be a great choice. The recipe calls for a mix of baking chocolate and cocoa powder. This cake is full of chocolate flavor.

Angled view of German chocolate banana cake on a yellow cake stand

I smashed the bananas and mixed them right into the filling instead of laying slices across the cake. There’s plenty of banana coconut flavor in each bite! I also opted for rum extract instead of alcohol, so even the youngsters can enjoy this delectable cake.

This recipe for German Chocolate Banana Cake features the traditional light chocolate cake with a coconut-banana filling.

German Chocolate Banana Cake

This recipe for German Chocolate Banana Cake features the traditional light chocolate cake with a coconut-banana filling. The filling alone is good enough to eat with a spoon!
5 from 2 votes
Print Rate
Course: Dessert
Cuisine: American
Prep Time: 2 hours 25 minutes
Cook Time: 40 minutes
Total Time: 3 hours 5 minutes
Servings: 12 servings
Calories: 759
Author: Jen Sobjack

Ingredients

For the filling

For the cake

Instructions

Make the filling

  • In a medium saucepan, whisk the egg yolks until frothy. Gradually whisk in the evaporated milk followed by the smashed banana. Add the sugars, butter, and salt. Heat the mixture over medium-high heat, whisking constantly. Cook for 6 to 10 minutes, until boiling and slightly thickened. Remove from heat, stir in the vanilla and rum extracts. Stir in the coconut. Transfer to a mixing bowl and cool to room temperature. Cover with plastic wrap and refrigerate for at least 2 hours.

Make the cake

  • Preheat the oven to 350ºF. Spray 2 9-inch round cake pans with nonstick spray. Line the bottoms with parchment paper cut into a circle to fit the pan. Spray the parchment paper with nonstick spray and dust the pan lightly with flour. Shake out any excess.
  • In a medium bowl, combine the flour, baking soda, and salt. Stir with a whisk and set aside.
  • Combine the baking chocolate and milk in a small saucepan. Heat over low heat, stirring occasionally until the chocolate has melted completely. Whisk in the cocoa powder until smooth and lump free. Set aside.
  • In a medium mixing bowl, beat the butter and sugars together with an electric mixer set to medium-low speed until light and fluffy. Beat in the eggs, one at a time, mixing well after each addition. Scrape down the sides as needed. Beat in the vanilla. Add in the chocolate and mix until well incorporated. With the mixer set to low speed, gradually mix in half the flour mixture, followed by the sour cream, and then the remaining flour mixture. Beat until just combined. The batter will be thick. Divide the batter evenly between the prepared pans. Spread the batter evenly to the edges of the pan, smoothing out the surface. Bake for 30 minutes or until a toothpick inserted into the center comes out clean.
  • Cool the cakes in the pan for 10 minutes, then invert the cakes onto a cooling rack to cool completely. Peel the parchment paper off the bottoms. before filling.
  • Once the cakes have completely cooled, use a serrated knife held parallel to the cake and saw the top of the cakes off to even out the layers. Place one cake on a serving platter cut side up. Spread half the filling in an even layer over the cake. Place the second layer cut side down over the filling. Spread the remaining filling in an even layer over the top.

Notes

When you assemble the cake, the filling should be cold or at room temperature. It is wise to make the filling first and then bake the cake while the filling chills. The cake can be served immediately or refrigerated for up to 4 hours. Let the cake stand at room temperature just before serving if it has been refrigerated.
Adapted from Cooks Illustrated.

Nutrition

Serving: 1slice | Calories: 759kcal | Carbohydrates: 92g | Protein: 9g | Fat: 41g | Saturated Fat: 26g | Cholesterol: 179mg | Sodium: 407mg | Potassium: 456mg | Fiber: 3g | Sugar: 70g | Vitamin A: 19.7% | Vitamin C: 3.1% | Calcium: 17.4% | Iron: 17%

Nutritional values here on my recipes should be used as a general guide only. Since different brands of ingredients have different nutritional information, the values shown are just an estimate.

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Nutritional values here on my recipes should be used as a general guide only. Since different brands of ingredients have different nutritional information, the values shown are just an estimate.

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