A rumble of street carts, a midnight market in Marrakesh meets a rainy Parisian alley — this cake is that unexpected postcard: chocolatey, green-willed, and impossible to ignore.
It folds the humble zucchini into a blockbuster of cocoa and sticky chips, like a passport stamp for your sweet tooth.
Dress it up or eat it hot from the pan; either way, it tells a story.
Why make this recipe
Because it’s the kind of cake that travels well: humble ingredients, bold results. Zucchini keeps it moist without shouting "vegetable," while cocoa and chips bring the drama. It’s a one-pan, mostly hands-off adventure that feeds a crowd, calms a midnight craving, and turns leftovers into heroic breakfasts.
How to make Chocolate Zucchini Cake
This is a street-food-meets-grandma method: mix wet, fold in dry, fold in chocolate, bake, and celebrate.
Ingredients:
- 2 cups finely grated zucchini
- 1 cup brown sugar
- 1 1/3 cup applesauce
- 2 eggs
- 2 teaspoons vanilla
- 2/3 cup flour
- 1 cup cocoa powder
- 2 teaspoons baking soda
- 1 1/2 teaspoons baking powder
- 1/2 teaspoon cinnamon
- 1/2 teaspoon salt
- 1 cup chocolate chips and or nuts
- 1/2 cup chocolate chips
- 1/2 cup butterscotch chips
- 1/2 cup peanut butter
- Nutella (optional for spreading)
Directions:
- Preheat the oven to 350F. Grease a 9×13 inch pan.
- Mix together the zucchini, sugar, applesauce, eggs, and vanilla.
- Stir together the remaining ingredients and add to the wet ingredients, stirring until combined.
- Stir in the chocolate chips and or nuts if using.
- Bake for about 55 minutes.
- Frost with the frosting if desired.
How to serve Chocolate Zucchini Cake
Slice it thick and rustic, like something a café owner from Lisbon would hand you with a wink. Warm slices are wonderful with a smear of Nutella or a drizzle of melted peanut butter; cool slices pair beautifully with espresso or cardamom tea. For a party, cut into squares and serve on a platter with a dusting of powdered sugar and a scattering of extra chips for drama.
How to store Chocolate Zucchini Cake
Leftovers are a treasure. Keep the cake covered at room temperature for up to 3 days. For longer life, wrap tightly and refrigerate up to a week — bring to room temperature or gently warm before serving. You can also freeze individual slices in airtight containers for up to 3 months; thaw overnight in the fridge and warm for 20–30 seconds in the microwave.
Tips to make Chocolate Zucchini Cake
- Grate the zucchini finely and gently squeeze out excess water only if it seems very watery — you want moisture, not swamp.
- Use good-quality cocoa; it makes the whole thing feel cinematic.
- Applesauce keeps the fat low and the texture tender; if you prefer, swap 1/3 cup applesauce for melted butter for a richer crumb.
- Don’t overmix once the flour and cocoa go in — fold until just combined to keep the cake tender.
- If adding nuts, toast them lightly for extra crunch and aroma.
Variations (if any)
- Peanut-butter swirl: dollop warmed peanut butter over the batter and swirl gently before baking.
- Chip party: go half-and-half with chocolate and butterscotch chips for a caramel twang.
- Frosting options: a simple chocolate ganache, cream cheese frosting, or a smear of Nutella for an Italian-street-cafe vibe.
- Gluten-free: swap in a 1:1 gluten-free flour blend and keep an eye on moisture — it may need a few extra minutes in the oven.
FAQs
Q: Can I omit the applesauce?
A: Yes. Applesauce adds moisture and replaces some fat. Substitute with 1/3 cup melted butter or oil for a richer cake; texture will be slightly denser.
Q: Do I have to peel the zucchini?
A: No — the skin is fine and adds color. Just grate it finely. If the skin is very thick or waxed, peel first.
Q: My cake sank in the middle — why?
A: Common causes are underbaking, too much leavening, or overmixing the batter. Make sure your oven is accurate and test with a toothpick near the 50–60 minute mark.
Q: Can I halve the recipe for an 8×8 pan?
A: Yes. Halve the ingredients and check for doneness a little earlier (start testing around 35–40 minutes).
Q: Are the extra chips necessary?
A: They’re optional but elevate the texture and flavor. Use whatever chips or nuts you love.
Conclusion
If you want to compare variations or draw inspiration from other bakers roaming the world of chocolate zucchini, check out this thoughtful take on the classic from Sally’s Chocolate Zucchini Cake recipe and the modern spin on the beloved dessert at Zoë Bakes’ Best Ever Chocolate Zucchini Cake.

Chocolate Zucchini Cake
Ingredients
Method
- Preheat the oven to 350F (175C). Grease a 9x13 inch pan.
- In a large bowl, mix together the zucchini, sugar, applesauce, eggs, and vanilla.
- In another bowl, stir together the flour, cocoa powder, baking soda, baking powder, cinnamon, and salt.
- Fold the dry ingredients into the wet ingredients until just combined.
- Stir in the chocolate chips and/or nuts if using.
- Pour the batter into the prepared pan and bake for about 55 minutes, or until a toothpick inserted in the center comes out clean.
- Frost with the frosting of choice if desired.