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Fudgy Double Chocolate Zucchini Brownies Easy Recipe with Rich Fudge Frosting

double chocolate zucchini brownies - featured image

These fudgy double chocolate zucchini brownies are dense, rich, and moist with a subtle vegetable twist, topped with a thick, creamy fudge frosting. Perfect for cozy gatherings and a comforting treat with hidden nutrition.

Ingredients

Scale
  • 1 ½ cups (180g) all-purpose flour
  • ½ cup (45g) unsweetened cocoa powder (preferably Dutch-processed)
  • 1 teaspoon baking powder
  • ½ teaspoon salt
  • 1 cup (200g) granulated sugar
  • ½ cup (100g) brown sugar, packed
  • 2 large eggs, room temperature
  • ½ cup (120ml) vegetable oil or melted coconut oil
  • 1 teaspoon pure vanilla extract
  • 1 cup (120g) zucchini, finely shredded and gently squeezed to remove excess liquid
  • ¾ cup (130g) dark chocolate chips
  • ½ cup (115g) unsalted butter, softened (for frosting)
  • ¾ cup (90g) powdered sugar, sifted (for frosting)
  • ¼ cup (25g) unsweetened cocoa powder (for frosting)
  • 23 tablespoons milk or cream (for frosting)
  • ½ teaspoon vanilla extract (for frosting)
  • Pinch of salt (for frosting)

Instructions

  1. Preheat oven to 350°F (175°C). Grease an 8×8-inch baking pan or line with parchment paper.
  2. Finely grate 1 cup zucchini using a box grater or food processor. Squeeze out excess moisture with a clean kitchen towel.
  3. In a large bowl, sift together flour, cocoa powder, baking powder, and salt.
  4. In a separate bowl, whisk granulated sugar, brown sugar, and eggs until smooth and slightly thickened (2-3 minutes). Add vegetable oil and vanilla extract; mix until combined.
  5. Pour wet ingredients into dry ingredients and gently fold with a spatula until just combined.
  6. Fold in shredded zucchini and dark chocolate chips carefully.
  7. Spread batter evenly into prepared pan. Bake for 28-32 minutes, checking at 28 minutes with a toothpick; it should come out with moist crumbs but no wet batter.
  8. Cool brownies completely in the pan on a wire rack for at least 45 minutes.
  9. To make frosting, beat softened butter until creamy. Gradually add powdered sugar and cocoa powder, alternating with milk, beating until fluffy. Add vanilla extract and salt; adjust milk for desired consistency.
  10. Once brownies are cool, spread fudge frosting evenly over the top. Slice into squares and serve.

Notes

Squeeze zucchini well to avoid soggy batter. Use good quality Dutch-processed cocoa and dark chocolate chips for best flavor. Avoid overmixing to keep brownies tender. Check baking time closely to prevent drying out. Cool brownies completely before frosting to prevent melting. Chill after frosting for easier slicing. For extra gooey centers, reduce baking time by 2-3 minutes. Let brownies sit a day before serving to deepen flavor.

Nutrition

Keywords: fudgy brownies, double chocolate, zucchini brownies, chocolate dessert, easy brownies, fudge frosting, moist brownies, vegetarian dessert, gluten-free option, vegan option