Chocolate Chip Zucchini Bread Recipe
I make this loaf on busy afternoons when I want something that feels like baking but actually comes together quickly. It’s forgiving, chocolatey, and a reliable way to use up a few zucchinis from the farmer’s market or your garden. The batter is thick, then loosens when the zucchini is folded in; it bakes into a tender, slightly dense crumb with rivers of melted chocolate.
This recipe is practical: no elaborate steps, no fussy measurements, and it tolerates small variations in shred size and moisture level. Follow the steps in order and you’ll get consistent results. If you want the loaf to look prettier, sprinkle a few extra chocolate chips on top before baking.
Below I’ll list exactly what you need, walk you through the bake step by step, and share tips that will keep the loaf moist and crumbly in the best way. I’ll also cover storage, common mistakes, and small adjustments you can make without changing the spirit of the recipe.
Gather These Ingredients
Ingredients
- ½cup(119ml) vegetable oil — provides moisture and keeps the crumb tender.
- ¾cup(150g) packed brown sugar — adds sweetness and a hint of molasses flavor.
- ¼cup(50g) granulated sugar — balances the brown sugar and helps with structure.
- 2large eggs — bind the batter and contribute to rise and richness.
- 1teaspoonvanilla extract — rounds out flavor; a little goes a long way.
- 2teaspoonscinnamon — warm spice that complements zucchini and chocolate.
- ½teaspoonbaking soda — helps with lift and browning.
- ½teaspoonbaking powder — adds a bit more lift for a tender crumb.
- ½teaspoonsalt — balances sweetness and enhances flavor.
- 1 ½cups(186g) all-purpose flour — the structure for the loaf; spoon and level for accuracy.
- 1 ½cups(approximately 152g) shredded zucchini — adds moisture and subtle vegetal flavor; squeeze out excess only if extremely wet.
- 1cup(170g) chocolate chipsplus more for the top — the chocolate that makes this zucchini bread feel indulgent; reserve a few for the top if you like a prettier loaf.
Chocolate Chip Zucchini Bread Cooking Guide
- Preheat oven to 350°F. Grease an 8×4-inch or 9×5-inch loaf pan with nonstick cooking spray or butter.
- In a large bowl, combine ½ cup vegetable oil, ¾ cup packed brown sugar, ¼ cup granulated sugar, 2 large eggs, and 1 teaspoon vanilla extract. Stir or whisk until smooth and homogenous.
- Add 2 teaspoons cinnamon, ½ teaspoon baking soda, ½ teaspoon baking powder, and ½ teaspoon salt to the wet mixture. Stir until evenly combined.
- Stir in 1 ½ cups all-purpose flour until the mixture becomes thick and the flour is incorporated. Do not overmix.
- Add 1 ½ cups shredded zucchini and stir until combined; the batter will loosen and become more pourable after the zucchini is incorporated.
- Fold in 1 cup chocolate chips until evenly distributed.
- Pour the batter into the prepared loaf pan and smooth the top with a spatula. Sprinkle additional chocolate chips on top as desired.
- Bake at 350°F: 50–60 minutes for a 9×5-inch pan, or 55–65 minutes for an 8×4-inch pan, until a toothpick inserted into the center comes out clean or with a few moist crumbs.
- Remove the loaf from the oven and let it cool in the pan until it is set enough to handle, then transfer the loaf to a wire rack to cool completely before slicing.
- Store the cooled loaf covered for up to 2 days or freeze for up to 3 months.
What You’ll Love About This Recipe
This loaf hits a sweet spot between comfort and simplicity. The chocolate chips make every bite feel decadent, while the zucchini keeps the crumb moist without tasting overtly “vegetable.” It’s satisfying at breakfast, forgiving as an afternoon snack, and sturdy enough to take on the go.
The method is straightforward: combine wet ingredients, stir in dry, fold in zucchini and chocolate. No creaming or separate dry/wet bowls beyond the basic mixing, which means fewer dishes and less fuss. Most importantly, it consistently rewards with a tender, well-textured slice.
International Equivalents
Oven temperature: 350°F is 175°C. Use the middle rack for the most even bake. The recipe gives a range of bake times depending on pan size: the 9×5 pan bakes a little faster than the narrower 8×4.
Some ingredients already include metric weights: 1 ½ cups flour is listed as 186g and 1 cup chocolate chips as 170g. If you use scales, follow those gram amounts for the most consistent results. The loaf stores well and freezes for up to 3 months; thaw at room temperature before slicing.
Equipment & Tools
- Loaf pan (8×4-inch or 9×5-inch) — choose one of these sizes as called out in the guide.
- Mixing bowl (large) — big enough to whisk and fold comfortably.
- Whisk or spoon — for mixing the wet ingredients and the batter.
- Spatula — for folding chocolate chips and smoothing the top of the batter.
- Box grater or food processor — to shred zucchini; either works fine.
- Wire rack — for cooling the loaf completely before slicing.
- Toothpick — to check doneness in the center.
Mistakes That Ruin Chocolate Chip Zucchini Bread
- Overmixing after the flour goes in — develops gluten and makes the loaf tough. Stir just until the flour disappears.
- Adding very wet zucchini without assessing moisture — can make the batter too loose and cause a dense, underbaked center. If your zucchini is soaking wet, briefly squeeze out excess water.
- Using the wrong pan size — batter in a much smaller pan will overflow or stay raw in the center. Stick to the 8×4 or 9×5 sizes given.
- Removing too early — underbaking leaves the center gummy. Use a toothpick; a few moist crumbs are fine, but raw batter is not.
- Skipping salt — even a small amount balances sweetness and deepens flavor.
Customize for Your Needs
If you want a slightly less sweet loaf, reduce the number of chocolate chips you fold in or reserve fewer for the top. For a denser, more compact texture, use finer shredded zucchini; for a lighter crumb, shred coarsely so less moisture is released during mixing.
Want smaller portions? Divide the batter among mini-loaf pans and reduce bake time, checking frequently. If you prefer a taller loaf, use the 8×4 pan; for a wider, shorter loaf, use the 9×5. These are simple ways to change presentation without altering the ingredient list.
Cook’s Commentary
I keep two grades of zucchini in mind: the big, watery ones you receive at the end of summer and the firmer, younger ones from early harvests. Either works here, but the wetter you suspect your zucchini is, the more gently you want to treat the batter: squeeze only if necessary, and don’t overmix after adding it.
The chocolate chips are the fun part. They melt into pockets of goo, then set again as the loaf cools. Serve slices slightly warm for the most satisfying experience. This loaf also slices well for sandwiches or toasts with a smear of butter.
Refrigerate, Freeze, Reheat
Storing
Store the cooled loaf covered at room temperature for up to 2 days. If you need more time, slice and freeze wrapped tightly or in a freezer-safe container for up to 3 months.
Thawing and Reheating
To thaw, leave slices at room temperature or warm gently in a low oven. For a quick single slice, microwave for 10–15 seconds to take the chill off and soften the chocolate slightly. If reheating a whole loaf, tent loosely with foil and warm at 300°F until just heated through; avoid long reheats to prevent drying out.
Helpful Q&A
- Q: How do I know the loaf is done? — A toothpick inserted in the center should come out clean or with a few moist crumbs. If it’s wet batter, bake longer and recheck in 5–7 minute increments.
- Q: Should I peel the zucchini? — No need. The thin skin blends into the loaf and adds color and texture.
- Q: Can I bake in a different pan? — Use one of the specified loaf sizes for best results. Other pans change bake time and may affect the final texture.
- Q: Why is my loaf sinking in the middle? — Likely underbaked or the oven temperature was too low. Make sure your oven is preheated and test with a toothpick before removing.
Next Steps
Make a loaf this weekend and take note of the shred size of the zucchini you used. Keep a small notebook or photo of the finished slice so you can repeat the exact texture you prefer. If you want to simplify clean-up, line the pan with parchment for an easy lift out.
If this recipe becomes a regular, try doubling it and freezing extra slices for quick breakfasts. And when you want to vary it, change only one thing at a time so you can tell how it affects the loaf. Happy baking.
Chocolate Chip Zucchini Bread Recipe
Ingredients
Equipment
Method
- Preheat oven to 350°F. Grease an 8×4-inch or 9×5-inch loaf pan with nonstick cooking spray or butter.
- In a large bowl, combine ½ cup vegetable oil, ¾ cup packed brown sugar, ¼ cup granulated sugar, 2 large eggs, and 1 teaspoon vanilla extract. Stir or whisk until smooth and homogenous.
- Add 2 teaspoons cinnamon, ½ teaspoon baking soda, ½ teaspoon baking powder, and ½ teaspoon salt to the wet mixture. Stir until evenly combined.
- Stir in 1 ½ cups all-purpose flour until the mixture becomes thick and the flour is incorporated. Do not overmix.
- Add 1 ½ cups shredded zucchini and stir until combined; the batter will loosen and become more pourable after the zucchini is incorporated.
- Fold in 1 cup chocolate chips until evenly distributed.
- Pour the batter into the prepared loaf pan and smooth the top with a spatula. Sprinkle additional chocolate chips on top as desired.
- Bake at 350°F: 50–60 minutes for a 9×5-inch pan, or 55–65 minutes for an 8×4-inch pan, until a toothpick inserted into the center comes out clean or with a few moist crumbs.
- Remove the loaf from the oven and let it cool in the pan until it is set enough to handle, then transfer the loaf to a wire rack to cool completely before slicing.
- Store the cooled loaf covered for up to 2 days or freeze for up to 3 months.
Notes
Sugar: I like the mix of brown and granulated but you can omit the brown sugar and use 1 cup granulated if you prefer.
The 8×4-inch loaf will bake more domed, while the 9×5-inch pan will be flatter.
Feel free to add in ½ cup chopped nuts with the chocolate chips after stirring in zucchini.
