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Chocolate Zucchini Cake

chocolate zucchini cake with fudgy chocolate frosting

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Discover the ultimate chocolate zucchini cake recipe! Moist, chocolatey, and topped with a fudgy frosting, it’s a must-try for any cake lover.

Ingredients

Scale
  • 1/2 cup (113 grams) unsalted butter, softened
  • 2 1/2 cups (298 grams) all-purpose flour
  • 3/4 cup (64 grams) unsweetened cocoa powder, natural
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 3/4 teaspoon table salt
  • 1/2 cup (99 grams) vegetable oil
  • 1 3/4 cups (342 grams) granulated sugar
  • 2 large eggs, room temperature
  • 2 teaspoons vanilla extract
  • 1/2 cup (112 grams) buttermilk, well shaken
  • 3 cups shredded raw zucchini

For the Frosting

  • 1/3 cup whole milk
  • 5 tablespoons (71 grams) unsalted butter
  • 1 cup (198 grams) granulated sugar
  • 1 cup semisweet chocolate chips, or milk chocolate chips
  • 1 teaspoon vanilla extract

Instructions

  1. Prepare the Oven and Pan: Position a rack in the center of the oven, heat to 350 F, and grease and flour a 9-by-13-inch baking pan. pan preparation for zucchini cake
  2. Combine Dry Ingredients: Sift the flour, cocoa, baking soda, baking powder, and salt into a bowl; set aside. combining the dry ingredients for the cake
  3. Start the Batter: In a mixing bowl with an electric mixer, beat the oil, butter, and sugar together for 2 minutes or until creamy and well blended. Add the eggs, one at a time, beating well after each addition. Beat in the vanilla. chocolate zucchini cake batter
  4. Finish the Batter: Add 1/3 of the flour mixture to the batter and beat just until combined. Beat in half of the buttermilk, then repeat with another 1/3 of the flour mixture and the remaining buttermilk. Add the remaining flour mixture and beat just until combined. Fold the zucchini into the batter. chocolate zucchini cake batter
  5. Spread and Bake: Spread the batter in the prepared baking pan and bake for 32 to 38 minutes or until a toothpick inserted into the center of the cake comes out clean. Transfer the cake to a rack to cool completely. The cake should be cool when you make the frosting. baked chocolate zucchini cake
  6. Make the Frosting and Finish the Cake: Combine the milk, butter, and sugar in a saucepan; bring to a boil over medium-high heat and boil for 1 full minute. Remove the pan from the heat and stir in the chocolate chips and vanilla until the chocolate has melted. Pour the hot frosting over the cooled cake. It will firm up to a soft, fudgy consistency in about 5 minutes. chocolate zucchini cake frosted
  7. Serve: Slice into squares and enjoy on its own or with a scoop of ice cream. Enjoy!