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Healthy Chocolate Zucchini Muffins

Healthy chocolate zucchini muffins with deep cocoa-brown crumb and a crackled, muffin-top finish. Thick batter bakes into a moist, fudgy interior with faint green zucchini flecks in every bite.
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Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings: 12 servings
Course: Breakfast
Cuisine: American
Calories: 210
Ingredients Equipment Method Notes

Ingredients
  

Dry ingredients
  • 1 cup whole wheat flour Measure level for the best thick batter.
  • 0.5 cup unsweetened cocoa powder Sift if you see lumps to keep the crumb smooth.
  • 1 tsp baking soda
  • 0.5 tsp baking powder
  • 0.25 tsp salt
Wet ingredients
  • 2 eggs Use room-temperature eggs for easier mixing.
  • 0.33 cup honey or maple syrup For lower sweetness, choose maple syrup and measure accurately.
  • 0.25 cup coconut oil, melted Let melted oil cool slightly so it doesn’t cook the eggs.
  • 0.5 cup plain Greek yogurt Use full-fat for a fudgier center.
  • 1 tsp vanilla extract
Add-ins
  • 1.5 cups zucchini, grated and squeezed dry Squeeze very dry so muffins bake up thick, not gummy.
  • 0.5 cup mini chocolate chips Fold last so they stay evenly distributed.

Equipment

  • 1 sheet pan

Method
 

Prep the oven and mix the dry ingredients
  1. Preheat the oven to 350°F and line a 12-cup muffin tin with liners, so the batter can go in right after mixing.
  2. Whisk whole wheat flour, unsweetened cocoa powder, baking soda, baking powder, and salt in a large bowl until evenly combined.
Mix wet ingredients and combine
  1. In a separate bowl, beat eggs, honey or maple syrup, melted coconut oil, Greek yogurt, and vanilla extract until smooth.
  2. Stir wet ingredients into dry until just combined—batter should be thick and you should stop mixing as soon as no dry streaks remain.
Add zucchini and chocolate chips
  1. Fold in grated zucchini and mini chocolate chips until evenly distributed through the thick batter.
Portion and bake
  1. Divide batter evenly among the muffin cups, filling each about ¾ full for high muffin tops.
  2. Bake at 350°F for 18–20 minutes until a toothpick inserted in the center comes out with a few moist crumbs, with tops that look deep chocolate-brown and slightly crackled.
  3. Cool in the pan for 5 minutes, then transfer to a wire rack so the bottoms don’t steam and soften.

Notes

Key pro tip: squeeze the grated zucchini very dry—this keeps the muffins moist and fudgy without turning gummy. Store in an airtight container in the fridge for up to 4 days; freeze in a sealed bag for up to 2 months and thaw overnight in the fridge. Dietary swap: use maple syrup instead of honey for a fully vegan option (still keep the eggs unless you’re doing an egg replacement).