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Ultimate Moist Double Chocolate Zucchini Muffins (Healthy & Easy)

Close-up of two moist chocolate zucchini muffins, one cut in half showing green zucchini shreds inside.

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Make these incredibly moist double chocolate zucchini muffins. They are easy to prepare, use simple ingredients, and hide vegetables well, making them a perfect healthy breakfast or snack.

Ingredients

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  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 3/4 cup unsweetened cocoa powder
  • 1 1/2 teaspoons ground cinnamon
  • 1 cup granulated sugar
  • 1/2 cup packed brown sugar
  • 2 large eggs
  • 1/2 cup vegetable oil
  • 1 teaspoon vanilla extract
  • 1 cup grated zucchini (about 1 medium zucchini, squeezed dry)
  • 1/2 cup milk (dairy or non-dairy)
  • 1 cup semi-sweet chocolate chips, divided

Instructions

  1. Preheat your oven to 400°F (200°C). Line a 12-cup muffin tin with paper liners or grease well.
  2. In a large bowl, whisk together the flour, baking soda, baking powder, salt, cocoa powder, and cinnamon.
  3. In a separate medium bowl, whisk together the granulated sugar, brown sugar, eggs, vegetable oil, and vanilla extract until combined.
  4. Add the wet ingredients to the dry ingredients. Mix gently until just combined. Do not overmix.
  5. Stir in the grated zucchini and milk until incorporated.
  6. Fold in 1/2 cup of the chocolate chips.
  7. Divide the batter evenly among the 12 muffin cups, filling each about two-thirds full. Sprinkle the remaining 1/2 cup of chocolate chips over the tops of the batter.
  8. Bake for 18 to 20 minutes, or until a toothpick inserted into the center comes out clean.
  9. Let the muffins cool in the pan for 5 minutes before transferring them to a wire rack to cool completely.

Notes

  • Squeeze excess moisture from the grated zucchini using a clean kitchen towel or paper towels. This step is key for moist, not soggy, muffins.
  • For a deeper chocolate flavor, use dark cocoa powder.
  • These muffins freeze well. Cool completely, then store in an airtight container for up to 3 months.
  • If you want a fudgy zucchini muffin texture, use slightly less flour.

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