Chocolate Banana Bundt Cake

Chocolate and bananas come together in this simple, moist bundt cake.

By
María del Mar Cuadra
A headshot of Maria del Mar Cuadra, a contributing writer at Serious Eats.
María del Mar Cuadra is a food stylist, recipe developer, and art director. She has written three cookbooks and worked for America's Test Kitchen.
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Updated January 02, 2025
Overhead of chocolate banana bundt cake.

Serious Eats / María del Mar Cuadra

Why It Works

  • A small amount of espresso powder adds extra depth to the chocolate flavor.
  • Coarsely mashing the bananas allows some of the fruit to get incorporated into the batter while leaving some distinct morsels strewn throughout the cake.

I've had an impossibly busy last few weeks—shoots, travel, prep, more shoots. Last Tuesday, I returned from a week-long trip at 3:00 am. Eager to make the most of my "day off," I promptly woke up 4 hours later, went to yoga, spent hours sifting through receipts and Excel spreadsheets, trying, in vain, to get my life in order. When I walked in the door at the end of the latest long day, I realized that the carefully applied triple layer of concealer had all been for naught: Madame Tussauds' wax couldn't hide these skim milk blue under-eye circles and jaundiced pallor. But the show must go on.

I'll admit that many of my cakes are unapologetically complex—multiple layers, long lists of ingredients, candy thermometer-required meringue-based buttercreams. But, on these days of exhaustion, I'm prone to mixing up simpler batters that don't require a trip to the supermarket or the strength to drag my heavy KitchenAid stand mixer out. All I want is to have my cake.

Enter this chocolate banana cake: large bowl, whisk, ripe (in my case, forgotten and aggressively freckled in black) bananas, and done. The inspiration comes from other simple, mix-by-hand cakes I've published before, because, be you a bedraggled mess like me or a lazy lady or gent in search of instant gratification, this cake is just right, and no one needs to know what little effort went into it.

Start by dumping butter, cocoa powder, water, and espresso powder in a saucepan and cook just until melted. (For all the mocha haters, the amount is just enough to bolster the cocoa, it will not impart distinctive coffee flavor.) This method cuts out that annoying purgatory that is waiting for butter to come to whippable consistency. Combine dry ingredients, then stir in the chocolate mixture, plus the usual dairy ingredients. Bananas come into the mix coarsely mashed so the resulting cake is pudding-rich and moist, with small, soft morsels of ripe bananas. Chopped walnuts add a meaty bite, and the overall effect is that of a banana split in cake form (do add a scoop of vanilla ice cream if you want the whole shebang).

Easy, peasy, no? And just the thing to get you out of your exhausted funk.

August 2012

Recipe Details

Chocolate Banana Bundt Cake

Prep 5 mins
Cook 50 mins
Cooling Time 70 mins
Total 2 hrs 5 mins
Serves 10 to 12 servings
Cook Mode (Keep screen awake)

Ingredients

  • Baking spray

  • 226g unsalted butter (8 ounces; 2 sticks)

  • 42g natural cocoa powder (1 1/2 ounces; 1/2 cup)

  • 7g (1 tablespoon) instant espresso powder

  • 1 cup (240ml) water

  • 283g all-purpose flour (10 ounces; about 2 1/4 cups)

  • 426g dark brown sugar (15 ounces; 2 cups)

  • 1 teaspoon baking powder

  • 1 teaspoon baking soda

  • 1 teaspoon Diamond Crystal kosher salt; for table salt, use half as much by volume

  • 340g coarsely mashed ripe bananas from 3 medium bananas (12 ounces; 1 1/2 cups)

  • 113g sour cream (4 ounces; 1/2 cup), at room temperature

  • 3 large eggs, at room temperature, lightly beaten

  • 2 teaspoons pure vanilla extract

  • 57g walnuts (2 ounces; 1/2 cup), chopped

  • 7g (1 tablespoon) confectioners' sugar

Directions

  1. Adjust oven rack to middle position and preheat oven to 350°F (175°C). Using baking spray, grease Bundt pan. In a medium saucepan, combine butter, cocoa powder, espresso powder, and water. Bring to a boil over medium-high heat, stirring with a heat-proof flexible spatula, until mixture is homogeneous, about 2 minutes.

  2. In a large bowl, whisk flour, brown sugar, baking powder, baking soda, and salt to combine. Whisk in cocoa mixture, followed by bananas, sour cream, eggs, and vanilla, until smooth. Using a flexible spatula, fold in walnuts.

  3. Scrape batter into prepared pan and bake until tester inserted in center of cake comes out clean, about 45 minutes.

  4. Transfer cake to cooling rack and cool 10 minutes, then invert directly onto rack and cool to room temperature, about 1 hour. Sprinkle with confectioners’ sugar using a fine-mesh strainer and serve.

Special Equipment

Bundt pan, small saucepan, whisk, cooling rack, fine-mesh strainer

Read More

Nutrition Facts (per serving)
469Calories
22gFat
63gCarbs
6gProtein
×
Nutrition Facts
Servings: 10 to 12
Amount per serving
Calories469
% Daily Value*
Total Fat 22g29%
Saturated Fat 11g56%
Cholesterol 93mg31%
Sodium 356mg15%
Total Carbohydrate 63g23%
Dietary Fiber 2g8%
Total Sugars 39g
Protein 6g
Vitamin C 3mg13%
Calcium 84mg6%
Iron 3mg17%
Potassium 232mg5%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

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