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Zucchini Brownies With Peanut Butter Frosting


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  • Author: Olivia
  • Total Time: 1 hour 15 minutes (includes cooling)
  • Yield: 9 to 12 brownies
  • Diet: Vegetarian

Description

These zucchini brownies are rich, fudgy, and secretly packed with shredded zucchini for extra moisture. Topped with a creamy peanut butter frosting, they strike the perfect balance between sweet, salty, and chocolatey.


Ingredients

  • For the brownies:
  • ½ cup vegetable oil or melted butter
  • 1 cup granulated sugar
  • 1 teaspoon vanilla extract
  • 2 large eggs
  • ½ cup unsweetened cocoa powder
  • 1 cup all-purpose flour
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 2 cups finely shredded zucchini (unpeeled)
  • For the peanut butter frosting:
  • ½ cup creamy peanut butter
  • ¼ cup unsalted butter, softened
  • 1½ cups powdered sugar
  • 2 tablespoons milk
  • ½ teaspoon vanilla extract

Instructions

  1. Preheat oven to 350°F (175°C). Lightly grease an 8×8-inch baking pan.
  2. In a large bowl, whisk together oil, sugar, and vanilla until smooth. Add eggs one at a time, mixing well after each.
  3. Stir in cocoa powder, flour, baking soda, and salt until just combined.
  4. Fold in shredded zucchini. Do not drain—moisture helps the texture.
  5. Spread batter evenly in prepared pan and bake for 25–30 minutes, or until center is set.
  6. Let brownies cool completely before frosting.
  7. For frosting: Beat peanut butter and softened butter until creamy. Gradually mix in powdered sugar, milk, and vanilla until smooth.
  8. Spread frosting over cooled brownies. Slice into 9–12 squares and serve.

Notes

  • Do not peel zucchini—just wash and shred finely.
  • Add chocolate chips or chopped nuts for texture.
  • Use dark cocoa powder for a more intense chocolate flavor.
  • Frost only after brownies have fully cooled to avoid melting the topping.
  • Store frosted brownies in the fridge for longer freshness.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 brownie (1/12 of pan)
  • Calories: 310
  • Sugar: 27g
  • Sodium: 190mg
  • Fat: 17g
  • Saturated Fat: 6g
  • Unsaturated Fat: 9g
  • Trans Fat: 0g
  • Carbohydrates: 38g
  • Fiber: 2g
  • Protein: 4g
  • Cholesterol: 35mg