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A tray of zucchini brownies topped with glossy chocolate frosting

The Best Zucchini Brownies Recipe

Discover the secret to making moist and delectable zucchini brownies, topped with a rich chocolate frosting. Perfect for any dessert lover!
Prep Time 15 minutes
Cook Time 25 minutes
Additional Time 20 minutes
Total Time 1 hour
Course Dessert Plate
Cuisine American
Servings 24 Servings
Calories 212.72 kcal

Ingredients
  

  • 1 ½ cups white sugar
  • ½ cup vegetable oil
  • 2 teaspoons vanilla extract
  • 2 cups all-purpose flour
  • ½ cup unsweetened cocoa powder
  • 1 ½ teaspoons baking soda
  • 1 teaspoon salt
  • 2 cups shredded zucchini
  • ½ cup chopped walnuts

Frosting:

  • 6 tablespoons unsweetened cocoa powder
  • ¼ cup butter or margarine
  • 2 cups confectioners' sugar
  • ¼ cup milk
  • ½ teaspoon vanilla extract

Instructions
 

  • Preheat the oven to 350 degrees F (175 degrees C). Grease and flour a 9x13-inch baking pan.
  • Mix sugar, oil, and 2 teaspoons vanilla together in a large bowl until well blended. Combine flour, 1/2 cup cocoa, baking soda, and salt together in a separate bowl; stir into sugar mixture. Fold in zucchini and walnuts; spread batter evenly into the prepared pan.
  • Bake in the preheated oven until top is dry and edges have started to pull away from the sides of the pan, about 25 to 30 minutes. Let cool, about 20 minutes.
  • Meanwhile, make the frosting: Whisk 6 tablespoons of cocoa and butter in a pan over medium-low heat until smooth and glossy; set aside to cool.
  • Blend confectioners' sugar, milk, and 1/2 teaspoon vanilla together; stir into cooled cocoa mixture. Spread over cooled brownies before cutting into squares.
Keyword Brownies, Chocolate, Vegetable, Zucchini