
These mini chocolate zucchini cakes are the perfect solution for using up summer zucchini while still satisfying a chocolate craving. Their rich cocoa flavor, paired with a moist tender crumb, makes them ideal for dessert trays or afternoon snacks. You can serve them straight from the oven or cool them for easy grab-and-go bites.
I first made these one weekend to use up extra zucchini and now my nieces ask for them every time they visit. They’re fun to bake and even more fun to eat.
Ingredients
- Unsalted butter: gives richness and moisture especially when melted and cooled properly
- Granulated sugar: adds sweetness and structure to the crumb
- Coarse salt: sharpens the chocolate flavor and balances the sugar
- Large egg: binds the batter and contributes to a smooth texture
- Vanilla extract: enhances the depth of flavor
- Grated zucchini: adds natural moisture and softness without tasting like vegetables
- Sour cream: ensures each bite is tender and prevents dryness
- All-purpose flour: creates structure and stability
- Unsweetened cocoa powder: offers strong chocolate flavor make sure to use high quality
- Mini chocolate chips: provide pockets of melty richness throughout
Step-by-Step Instructions
- Preheat the Oven:
- Set your oven to three hundred fifty degrees Fahrenheit so it's hot and ready by the time your batter is mixed
- Mix the Wet Ingredients:
- In a large bowl whisk together melted butter sugar salt and egg until fully combined then fold in the vanilla grated zucchini and sour cream until smooth
- Incorporate Dry Ingredients:
- Sift the flour and cocoa powder into the bowl with the wet ingredients to ensure even mixing then stir until no dry streaks remain
- Fold in Chocolate Chips:
- Gently fold in the mini chocolate chips to avoid overmixing which keeps the cakes light
- Prepare the Muffin Pan:
- Grease a twenty four slot mini muffin tin with nonstick spray then fill each cavity with two heaping tablespoons of batter
- Bake the Cakes:
- Bake in the center of the oven for thirteen to fifteen minutes until a toothpick inserted in the center comes out clean
- Cool Before Serving:
- Let the mini cakes rest in the tin for a few minutes before transferring them to a wire rack to finish cooling

I love using fresh garden zucchini for these. One summer my toddler helped me grate it and proudly called these green chocolate bites. They’re still one of his favorites.
Storage Tips
Store cooled cakes in an airtight container at room temperature for up to two days. For longer storage freeze them in a single layer then transfer to a freezer bag. Thaw at room temperature or gently warm in the microwave.
Ingredient Substitutions
If zucchini is unavailable use grated carrots for a different flavor. You can also mix in chopped nuts like walnuts or pecans for added texture.
Serving Suggestions
Serve these on a platter dusted with powdered sugar or pair with whipped cream or a scoop of ice cream for a richer dessert. They also make great party favors or lunchbox treats.

Cultural Context
Using zucchini in chocolate desserts became popular as a sneaky way to boost nutrition in baked goods. This style of baking grew during the home garden resurgence and now enjoys a loyal following for its moist results and subtle veggie content.
Frequently Asked Questions About Recipes
- → Can I substitute zucchini with another vegetable?
Yes, grated carrots are a great substitute for zucchini. You can also add chopped nuts for extra texture and flavor.
- → How should I store mini zucchini cakes?
Store them in an airtight container at room temperature for up to 2 days or freeze for up to 2 months.
- → Can I use regular-sized muffin pans instead?
Yes, you can use standard muffin pans. Adjust the baking time to 18–22 minutes or until a toothpick comes out clean.
- → What kind of cocoa powder should I use?
Use natural unsweetened cocoa powder for best results. Avoid Dutch-processed unless the recipe specifically calls for it.
- → Do I need to peel the zucchini first?
No, keep the peel on. It blends well into the batter and adds moisture and nutrients without affecting texture.