This chocolate chip zucchini bread is a straightforward quick bread that uses grated zucchini to keep the crumb soft without adding any detectable vegetable flavor. It bakes in about an hour, slices cleanly once cooled, and holds up well for several days — which makes it genuinely useful when you need something ready ahead of time. One cup of semi-sweet chocolate chips scattered through the batter (and a few pressed on top) gives every slice a little something extra without turning it into dessert.
Shopping notes
- Zucchini: Medium zucchini work best — large ones have more seeds and higher water content, which makes draining harder. One medium zucchini typically yields about 1 cup grated after squeezing.
- Chocolate chips: Mini chips distribute more evenly through the batter than standard-size ones and are less likely to sink. Standard chips work fine but cluster more.
- Brown sugar: Light or dark both work. Dark brown sugar adds a slightly deeper, more molasses-forward flavor — either is a good choice.
- Oil: Vegetable or canola oil keeps the loaf moist for days. Do not substitute melted butter 1:1; it produces a drier crumb on day two and beyond.
Why this recipe works
Two things matter most here. First, squeezing the grated zucchini removes enough water that the batter stays thick and the loaf sets properly — but the zucchini still holds residual moisture that keeps the crumb tender through the full bake time and for days afterward. Second, using both granulated and brown sugar isn’t just about sweetness: the molasses in brown sugar is hygroscopic, meaning it attracts and holds moisture, which is a big part of why this loaf stays soft rather than drying out quickly. Skip the garnish of reserved chips on top — not worth the extra step, since they slide off when slicing anyway.
What can go wrong
- Wet, gummy center: Usually caused by not squeezing the zucchini firmly enough. Wrap the grated zucchini in a clean kitchen towel and wring it hard — you want it to feel almost dry to the touch before it goes into the batter.
- Loaf sinks in the middle after baking: This happens when the batter is over-mixed after the dry ingredients are added, which overdevelops gluten and then causes the structure to collapse. Fold just until no dry streaks remain.
- Chips all sink to the bottom: Toss the chocolate chips in a teaspoon of flour from the measured amount before folding them in. This helps them stay suspended in the batter during baking.
- Top browns too fast before the center is done: If the top looks dark before the 55-minute mark, tent the pan loosely with foil and continue baking. Oven hot spots and dark-colored pans both speed up surface browning.
- Loaf sticks or tears when removing: Parchment overhang on the long sides of the pan acts as handles — make sure it extends at least an inch above the rim before you pour in the batter.
Storage and reheating
Once fully cooled, wrap the loaf tightly in plastic wrap or store slices in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to 6 days — the texture stays good, though the loaf firms up slightly when cold. To freeze, wrap the whole loaf or individual slices in plastic wrap, then in foil, and freeze for up to 3 months. Thaw overnight at room temperature or unwrap a slice and microwave it for 20–25 seconds. It comes out nearly as good as fresh.
Chocolate Chip Zucchini Bread
Ingredients
- 1 cup zucchini grated and excess moisture squeezed out
- 1 ½ cups all-purpose flour
- 1 teaspoon baking soda
- ¼ teaspoon baking powder
- ½ teaspoon salt
- ½ teaspoon cinnamon ground
- ½ cup vegetable oil or canola oil for a lighter taste
- ⅔ cup granulated sugar
- ½ cup packed brown sugar light or dark
- 2 large eggs room temperature
- 2 teaspoons vanilla extract
- 1 cup semi-sweet chocolate chips use mini chocolate chips for better distribution
Instructions
- Preheat your oven to 175°C (350°F). Grease a 9x5 inch loaf pan with butter or non-stick spray and line with parchment paper for easier removal.
- In a large bowl, combine the flour, baking soda, baking powder, salt, and cinnamon. Stir until evenly mixed and set aside.
- In another bowl, whisk together vegetable oil, granulated sugar, brown sugar, eggs, and vanilla extract until smooth and creamy.
- Add the grated and well-drained zucchini to the wet mixture and mix until just combined.
- Gradually fold the dry ingredients into the wet mixture, stirring gently to avoid over-mixing.
- Fold in the chocolate chips, reserving a few to sprinkle on the top.
- Pour the batter into the prepared loaf pan. Sprinkle the reserved chocolate chips on top for an appealing finish.
- Bake for about 55-65 minutes, or until a toothpick inserted into the center comes out clean. The top should be golden and slightly crisp.
- Let the bread cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely before slicing.
Notes
Nutrition
Your questions, answered
Do I have to peel the zucchini before grating?
No — leave the skin on. It softens completely during baking and disappears into the crumb. Peeling just adds an extra step with no real benefit.
Can I make this the night before I need it?
Yes, and it’s actually better the next day. The crumb firms up slightly as it cools completely, which makes it easier to slice cleanly. Wrap it well once it’s fully cool and leave it at room temperature overnight.
Can I use frozen zucchini?
You can, but thaw it completely first and squeeze out the liquid very thoroughly — frozen zucchini releases significantly more water than fresh. Expect to spend an extra minute or two wringing it out.
My loaf is done on the outside but still wet in the middle — what happened?
The most common cause is zucchini that wasn’t drained well enough, which adds excess moisture to the batter. If your toothpick comes out wet past the 65-minute mark, tent the top with foil and bake in 5-minute increments until the center is set.
Try these next
- Ultimate Banana Bread
- Fluffy Cinnamoroll Milk Bread Cinnamon Rolls
- Indulgent Giant Chocolate Chip Cookie Cake
- Warm and Comforting Classic Apple Crumble
