Triple Chocolate Zucchini Muffins with Mini Chips
Moist, fudgy chocolate muffins studded with mini chips and naturally sweetened with grated zucchini. The boiling water creates an impossibly tender crumb while cocoa powder and chocolate chips deliver rich, deep chocolate flavor in every bite. Perfect for breakfast, lunchbox snacks, or afternoon treats. This version uses non-dairy milk options and balances three forms of chocolate for layered cocoa intensity without heaviness.
Ingredients
- 1 cup zucchini, finely grated, loosely laid not packed
- 1 cup all-purpose flourgluten-free all-purpose flour blend1:1
dietary
- ¾ cup granulated sugar
- ⅓ cup unsweetened cocoa powder
- 1 teaspoon baking soda
- ¼ teaspoon salt, or to taste
- 1 large egg
- ½ cup non-dairy chocolate milk, Silk Dark Chocolate Walnut Nutchello, or soy/almond/coconut milk or chocolate milk
- 2 teaspoon white vinegar
- ¼ cup canola or vegetable oil
- 1 teaspoon vanilla extract
- ½ cup boiling water
- ½ cup semi-sweet mini chocolate chipsdark chocolate chips or milk chocolate chips1:1adds dairy
- semi-sweet mini chocolate chips, for topping, about 1 teaspoon per muffindark chocolate chips or milk chocolate chips1:1adds dairy
Instructions
- 1
Preheat oven to 350F. Line 12-cup muffin pan with liners.
- 2
Grate zucchini on fine blade of box grater.
- 3
Whisk together flour, sugar, cocoa powder, baking soda, and salt in large bowl.
- 4
Whisk egg, chocolate milk, vinegar, oil, and vanilla in medium bowl.
- 5
Pour wet ingredients into dry and stir until combined, ensuring no dry streaks remain.
- 6
Fold in grated zucchini.
- 7
Stir in boiling water until batter is thin and smooth.
- 8
Fold in 1/2 cup mini chocolate chips.
- 9
Divide batter among muffin liners, filling each 3/4 full.
- 10
Top each muffin with generous pinch of mini chocolate chips.
- 11
Bake until tops dome and set, about 20 minutes, until toothpick inserted in center emerges clean or with moist crumbs.
- 12
Cool in pan on wire rack 10-15 minutes before removing.
Tips
Grate zucchini loosely without pressing into cup; packed zucchini releases excess moisture that affects crumb texture. Squeeze excess liquid if zucchini is very wet.
Boiling water thins batter intentionally, creating moist tender muffins. Do not reduce or the texture becomes dense.
Fill liners 3/4 full; batter rises minimally despite thin consistency, preventing overflow.
Good to Know
Airtight container at room temperature up to 5 days or frozen up to 4 months.
Batter can be mixed 2 hours ahead and refrigerated, though boiling water may cool. Muffins freeze well; thaw at room temperature or warm in 300F oven for 8-10 minutes.
Serve warm or at room temperature with coffee, milk, or as grab-and-go breakfast. Pairs well with cream cheese frosting or yogurt.
Common Mistakes
Pack zucchini into cup to avoid dense, gummy muffins with poor structure.
Reduce boiling water to avoid thin batter that produces undersaturated cocoa flavor and dense crumb.
Overmix batter to avoid tough, rubbery muffins from overdeveloped gluten.
Substitutions
Nut-Free Alternatives
General Alternatives
dietary
FAQ
Can I use chocolate syrup instead of cocoa powder?
No; chocolate syrup adds liquid that throws off ratios and creates wet, dense muffins. Cocoa powder provides dry cocoa solids without excess moisture. Use cocoa powder as written.
What if my muffins are dry or dense?
Overmixing develops gluten; stir until dry bits vanish, then stop. Boiling water is essential for moisture; do not omit. Overbaking past toothpick clean also dries muffins; pull at 20 minutes when a few crumbs cling.
How long can I keep muffins and can I freeze them?
Store airtight at room temperature up to 5 days. Freeze in airtight container or bag up to 4 months. Thaw at room temperature 1-2 hours or warm in 300F oven 8-10 minutes for soft crumb.