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A close up of the moist crumb of a sliced Triple Chocolate Zucchini Cake on a plate.

Triple Chocolate Zucchini Cake


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5 from 15 reviews

Description

This refined triple chocolate cake uses finely shredded zucchini to achieve a remarkably moist, tender crumb without any vegetal flavor. Layered with a rich chocolate ganache-based buttercream, it is a masterclass in balancing chemistry and indulgence.


Ingredients

  • Flour
  • Natural cocoa powder
  • Baking soda
  • Baking powder
  • Espresso powder
  • Salt
  • Vegetable oil
  • Granulated sugar
  • Brown sugar
  • Eggs
  • Sour cream
  • Vanilla extract
  • Grated zucchini
  • Semi-sweet chocolate chips
  • Unsalted butter
  • Heavy cream
  • Powdered sugar


Instructions

  1. Prepare the pans. Preheat your oven to 350ºF (177ºC) and grease three eight-inch cake pans, lining the bottoms with parchment paper.
  2. Sift dry ingredients. Whisk together the flour, cocoa powder, baking soda, baking powder, espresso powder, and salt in a large bowl.
  3. Mix wet base. Combine the oil, granulated sugar, brown sugar, eggs, sour cream, and vanilla extract until smooth, then fold in the grated zucchini.
  4. Combine the batter. Pour the wet mixture into the dry ingredients and fold gently using wide strokes until only a few dry streaks of flour remain.
  5. Fold in chips. Gently fold in the semi-sweet chocolate chips until just distributed throughout the batter.
  6. Bake the layers. Divide the batter equally into the pans and bake for 35 to 40 minutes, or until a toothpick inserted into the center comes out clean.
  7. Cool the cake. Allow the layers to rest in their pans for ten minutes before inverting them onto a wire rack to cool completely.
  8. Prepare the ganache. Melt the first portion of chocolate chips with heavy cream in the microwave until glossy and smooth, then set aside to reach room temperature.
  9. Whip the buttercream. Cream the butter and salt, incorporate the cocoa powder, then gradually beat in the powdered sugar, cream, vanilla, and cooled ganache until light and spreadable.
  10. Assemble the cake. Frost each layer generously, then coat the top and sides of the finished cake, using an offset spatula to smooth the exterior.

Notes

  • Ensure all dairy and egg ingredients are at room temperature to prevent the batter fats from seizing during the emulsion process.
  • Use a box grater on the fine setting for the zucchini so the vegetable disappears completely into the crumb during the baking process.
  • Measure all dry ingredients by weight using a kitchen scale to ensure the precise structural balance required for the cake to rise correctly.
  • Allow the final assembled cake to chill in the refrigerator for at least thirty minutes before slicing to ensure the buttercream and crumb are properly set.
  • Prep Time: 30 mins
  • Cook Time: 40 mins
  • Category: Dessert
  • Method: Baking
  • Cuisine: French-inspired