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Every summer, the same thing happens. My neighbor drops off a paper bag of zucchini the size of baseball bats, and I stand in my kitchen wondering what on earth I’m going to do with all of it. A few years ago, on one of those overwhelmed afternoons, I had a carton of blueberries going soft on the counter and a loaf pan sitting in the drying rack, and blueberry zucchini bread was born almost by accident. It’s been my go-to summer bake ever since, and honestly, it’s the recipe I get asked for the most.
If you’ve ever made a plain zucchini loaf and found it a little one-note, this is the upgrade. The blueberries burst as they bake, adding little pockets of jammy sweetness against the soft, moist crumb of the zucchini bread. It smells like cinnamon and warm butter drifting through the house, and it disappears fast — usually before it’s even fully cooled.
Why This Blueberry Zucchini Bread Recipe Works
I’ve made a lot of zucchini bread in my life, including plenty of forgettable, gummy loaves. What makes this blueberry zucchini bread different comes down to three things: properly prepped zucchini, the right ratio of wet to dry ingredients, and blueberries that are treated gently so they don’t sink or bleed into the batter. Get those three right, and you’ll end up with a loaf that’s tender, evenly baked, and sliceable without falling apart.
What You’ll Need
Blueberry Zucchini Bread
Ingredients
This recipe makes one standard 9×5-inch loaf, about 10 slices.
How to Make Blueberry Zucchini Bread, Step by Step
Step 1: Prep the zucchini.
Shred your zucchini using a box grater, skin and all — there’s no need to peel it, the skin softens completely during baking and adds a nice fleck of green throughout the loaf. Place the shredded zucchini on a clean kitchen towel or paper towels and squeeze out as much liquid as you can. This step matters more than any other for this blueberry zucchini bread; skip it, and you risk a dense, soggy loaf.
Step 2: Preheat and prep your pan.
Preheat your oven to 350°F. Grease a 9×5-inch loaf pan with butter or oil, or line it with parchment paper for easy removal.
Step 3: Whisk the dry ingredients.
In a medium bowl, whisk together the flour, baking soda, baking powder, cinnamon, and salt. Set aside.
Step 4: Mix the wet ingredients.
In a large bowl, whisk the eggs until slightly frothy, then whisk in the granulated sugar, brown sugar, oil, and vanilla extract until smooth and glossy.
Step 5: Combine.
Fold the dry ingredients into the wet ingredients just until no streaks of flour remain. Fold in the squeezed zucchini. Be careful not to overmix — a few lumps are perfectly fine, and overmixing is what turns a soft crumb tough.
Step 6: Fold in the blueberries.
Toss the blueberries with the extra tablespoon of flour before adding them to the batter. This little trick keeps them suspended through the loaf instead of sinking straight to the bottom. Gently fold them in with a spatula, using as few strokes as possible so they don’t burst prematurely.
Step 7: Bake.
Pour the batter into your prepared pan and smooth the top. Bake for 55 to 60 minutes, or until a toothpick inserted in the center comes out clean or with just a few moist crumbs. If the top is browning too quickly, tent it loosely with foil for the last 15 minutes.
Step 8: Cool completely.
Let the blueberry zucchini bread cool in the pan for 15 minutes, then transfer it to a wire rack to cool fully before slicing. I know it’s tempting to cut in early, but a warm loaf will crumble; a fully cooled one slices clean.
My Best Tips for a Perfect Loaf
Squeezing the zucchini is non-negotiable — I use a clean dish towel, twist it like wringing out a wet swimsuit, and I’m always a little surprised by how much liquid comes out. Skipping it is the single biggest reason zucchini bread turns out gummy or sinks in the middle.
As for butter versus oil, I stick with oil in this particular blueberry zucchini bread. Oil stays liquid at room temperature, which keeps the crumb noticeably moister for days, whereas butter can make the loaf firm up once it cools. If you love a butter flavor, you can swap in melted butter for half the oil without losing too much moisture.
Fresh blueberries are lovely when they’re in season, but frozen work beautifully too — just don’t thaw them first, or you’ll tint the whole batter purple and end up with a mushier bread. If you want to see how another baker handles the fresh-versus-frozen debate and the overall technique, Averie Cooks has a well-tested version of blueberry zucchini bread worth comparing notes with.
Storing Your Blueberry Zucchini Bread
Once fully cooled, this loaf keeps at room temperature, wrapped tightly in plastic wrap or stored in an airtight container, for up to 2 days. After that, I’d move it to the fridge, where it stays fresh for about a week. It also freezes beautifully — slice it first, wrap individual pieces, and pull them out as needed. If you’re building out a whole rotation of make-ahead treats, it’s worth browsing a few more snack and appetizer recipes that freeze and reheat just as easily.
Frequently Asked Questions
Do you squeeze out the liquid from zucchini for bread?
Yes, always. Shredded zucchini holds a surprising amount of water, and if it goes into the batter unsqueezed, your blueberry zucchini bread will bake up dense, gummy, and prone to sinking in the middle. A few minutes of squeezing with a towel makes all the difference.
Should you use fresh or frozen blueberries for bread?
Both work well in blueberry zucchini bread. Fresh blueberries give the cleanest look and hold their shape a bit better, while frozen berries are convenient year-round — just toss them in straight from the freezer, unthawed, so they don’t bleed color and excess moisture into the batter.
Is zucchini bread better with butter or oil?
Oil generally produces a moister, longer-lasting loaf, which is why most blueberry zucchini bread recipes, including this one, use oil as the base fat. Butter adds flavor but can leave the bread firmer once it cools, so a half-and-half blend is a good compromise if you want both.
Should you refrigerate zucchini bread after baking?
It’s not required right away — this blueberry zucchini bread is fine at room temperature, tightly wrapped, for the first day or two. After that, refrigeration extends its freshness to about a week, and it’s the safest choice if your kitchen runs warm or humid.
Give This Blueberry Zucchini Bread a Try
This is the kind of recipe that turns a counter full of overgrown zucchini into something people actually fight over. It’s forgiving, it freezes well, and it’s become the loaf my friends specifically ask about when zucchini season rolls around again. If you bake this blueberry zucchini bread, I’d genuinely love to know how it turns out for you — drop a comment below, or save the recipe to come back to later.
You can also follow along on Pinterest for more recipes like this one, straight from my kitchen to yours.