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Chocolate Banana Swirl Cake

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  • Author: Elina
  • Prep Time: 15 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 10 minutes
  • Yield: 8 slices 1x
  • Category: Dessert
  • Method: Baked
  • Cuisine: American
  • Diet: Vegetarian

Description

A moist, rich cake featuring luscious layers of ripe banana cake and deep chocolate swirls, finished with a light dusting of powdered sugar and a drizzle of chocolate syrup — this dessert is perfectly balanced with sweet, fruity, and indulgent notes.


Ingredients

Units Scale
  • 2 ripe bananas, mashed
  • 1/2 cup granulated sugar
  • 1/4 cup brown sugar
  • 1/2 cup unsalted butter, softened
  • 2 large eggs
  • 1/2 cup sour cream
  • 1 tsp vanilla extract
  • 1 1/2 cups all-purpose flour
  • 1 tsp baking soda
  • 1/4 tsp salt
  • 1/4 cup unsweetened cocoa powder
  • 1/4 cup milk
  • Powdered sugar (for dusting)
  • Chocolate syrup (for drizzling)

Instructions

  1. Preheat oven to 350°F (175°C). Grease and flour a loaf or cake pan.
  2. In a large bowl, cream together butter and both sugars until light and fluffy.
  3. Add eggs one at a time, beating well. Mix in mashed bananas, sour cream, and vanilla.
  4. In another bowl, whisk together flour, baking soda, and salt. Gradually add to the wet mixture and mix just until combined.
  5. Divide batter in half. To one half, stir in cocoa powder and milk to make the chocolate batter.
  6. Alternate spoonfuls of banana and chocolate batters into the pan. Swirl gently with a knife to create a marbled effect.
  7. Bake for 50–60 minutes, or until a toothpick inserted into the center comes out clean.
  8. Cool completely. Dust with powdered sugar and drizzle with chocolate syrup before serving.

Notes

  • Use very ripe bananas for the best flavor and sweetness.
  • Don’t overmix the batters to maintain a tender texture.
  • Store leftovers in an airtight container at room temperature for up to 3 days.

Nutrition

  • Serving Size: 1 slice
  • Calories: 320 kcal
  • Sugar: 22g
  • Sodium: 160mg
  • Fat: 17g
  • Saturated Fat: 10g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 38g
  • Fiber: 2g
  • Protein: 4g
  • Cholesterol: 70mg