Blueberry Zucchini Bread With Lemon Glaze tastes like a moist lemon loaf and a juicy blueberry muffin had a very delicious baby. It works perfectly for busy home bakers who want a not-too-sweet quick bread that goes from grating zucchini to slicing warm pieces in about 1 hour 15 minutes. I first baked this on a Sunday when my garden exploded with zucchini, and my kids now call it “cake that Mom pretends is a vegetable.”

Why Blueberry Zucchini Bread With Lemon Glaze Is Worth It

This blueberry zucchini bread bakes up tender, moist, and bright with lemon, with little pops of juicy berries in every slice. The lemon glaze adds a sweet-tart finish that makes it taste bakery-level fancy with very little effort.

You mix everything in basic bowls, use simple pantry ingredients, and sneak in a solid amount of zucchini without anyone noticing. It works as breakfast, snack, or dessert, so one loaf covers a lot of cravings.

“This Blueberry Zucchini Bread With Lemon Glaze tastes like summer in a slice and disappears from the counter in one afternoon. ★★★★★”

Ingredients You Need

Dry ingredients

2 cups (240 g) all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon fine sea salt
1 teaspoon ground cinnamon (optional, but adds cozy flavor)

You can use unbleached all-purpose flour or a mix of half all-purpose and half white whole wheat. I avoid very strong bread flour here because it makes the crumb too chewy. Use fresh baking powder and baking soda so the bread rises high and light.

Wet ingredients

2 large eggs, room temperature
3/4 cup granulated sugar
1/4 cup light brown sugar, packed
1/2 cup neutral oil (canola, vegetable, or light olive oil)
1/4 cup plain Greek yogurt or sour cream
2 teaspoons vanilla extract
Zest of 1 large lemon (save the juice for the glaze)

Greek yogurt adds moisture and a little tang that pairs nicely with the lemon. If you only have regular yogurt, use it and drain off any extra liquid with a spoon. I like pure vanilla extract because it tastes cleaner, but use what you have.

Zucchini and blueberries

1 1/2 cups grated zucchini (about 1 medium zucchini)
1 cup fresh blueberries (or frozen, unthawed)
1 tablespoon flour (to toss with the blueberries)

Grate the zucchini on the small or medium holes of a box grater. You want it finely shredded so it melts into the batter. Frozen blueberries work well; keep them frozen and toss quickly with flour so they do not streak the batter too much.

Lemon glaze

1 cup powdered sugar, sifted
2–3 tablespoons fresh lemon juice
1 teaspoon lemon zest (optional, but bright and punchy)
Tiny pinch of salt

Adjust the lemon juice to get a thick but pourable glaze. If it turns too thin, add a spoonful of powdered sugar. If it turns too thick, add a few drops of lemon juice or milk.

Equipment

9×5-inch loaf pan (metal works best for even baking)
Parchment paper (helps lift the loaf out cleanly)
Two mixing bowls (one large, one medium)
Whisk and rubber spatula
Box grater for zucchini
Microplane or fine grater for lemon zest
Cooling rack
Small bowl and spoon for the glaze

Quick Tips & substitutions

Squeeze the zucchini gently in a clean towel if it feels very wet, but leave some moisture so the bread stays soft.
Toss blueberries with 1 tablespoon flour so they stay more evenly distributed in the loaf.
Use half granulated sugar and half coconut sugar if you want a deeper flavor.
Swap Greek yogurt with sour cream or plain regular yogurt if needed.
Use avocado oil or melted coconut oil instead of vegetable oil; just cool melted coconut oil slightly.
If you only have a smaller 8.5×4.5-inch loaf pan, add 5–10 minutes to the bake time and check with a toothpick.
Line the pan with parchment and leave “handles” on the long sides so you lift the bread out easily.
Let the bread cool at least 20–30 minutes before glazing so the glaze does not slide right off.
Use frozen blueberries straight from the freezer; do not thaw them or they bleed more into the batter.

How to Make Blueberry Zucchini Bread With Lemon Glaze

Step 1: Prep the pan and oven

Preheat your oven to 350°F (175°C). Grease a 9×5-inch loaf pan with oil or nonstick spray, then line it with a strip of parchment that hangs over the long sides. This setup makes the loaf release easily and keeps the bottom from sticking.

Step 2: Grate and prep the zucchini

Wash and dry the zucchini, then trim off the ends. Grate it on the small or medium holes of a box grater. If it looks very watery, gather it in a clean kitchen towel and squeeze gently once or twice, but do not wring it completely dry.

Measure 1 1/2 cups of the grated zucchini and set it aside. You want visible shreds but no big chunks. The zucchini will soften as it bakes and keep the crumb moist.

Step 3: Mix the dry ingredients

In a medium bowl, whisk together the flour, baking powder, baking soda, salt, and cinnamon. Break up any little clumps of flour or cinnamon with the whisk. Set this bowl aside while you mix the wet ingredients.

Step 4: Mix the wet ingredients

In a large bowl, whisk the eggs until they look slightly frothy. Add the granulated sugar and brown sugar and whisk until the mixture looks thick and a bit lighter in color.

Whisk in the oil, yogurt, vanilla, and lemon zest until the mixture looks smooth and glossy. Scrape down the sides of the bowl with a spatula so everything mixes evenly. This mixture forms the base flavor of your blueberry zucchini bread.

Step 5: Combine wet and dry

Add the dry ingredients to the wet ingredients in two additions. Stir gently with a spatula until you see no dry streaks of flour. Stop mixing as soon as the batter looks combined so the bread stays tender and does not turn tough.

Fold in the grated zucchini with a few gentle strokes. The batter will look thick at first, then loosen slightly as the zucchini moisture spreads through it. Scrape the bottom of the bowl to catch any hidden pockets of flour.

Step 6: Prep and fold in the blueberries

In a small bowl, toss the blueberries with 1 tablespoon of flour. This light coating helps them stay suspended in the batter. Shake off any extra flour if you see clumps.

Gently fold the blueberries into the batter with a spatula. Use slow, sweeping motions so you do not crush the berries. A few streaks of purple look fine and taste great.

Step 7: Fill the pan and bake

Pour the batter into the prepared loaf pan and smooth the top with a spatula. Sprinkle a few extra blueberries on top if you want a pretty finish.

Bake on the middle rack for 50–60 minutes, until a toothpick inserted in the center comes out with just a few moist crumbs. If the top browns too quickly, tent the loaf loosely with foil during the last 10–15 minutes.

Step 8: Cool the bread

Set the pan on a cooling rack and let the bread cool in the pan for about 15 minutes. Use the parchment “handles” to lift the loaf out onto the rack. Let it cool until just warm or room temperature before you add the lemon glaze.

If you slice the bread while it still feels very hot, it may crumble more. I know the wait feels long, but the slices hold together better and taste more lemony once they rest.

Step 9: Mix the lemon glaze

In a small bowl, whisk the powdered sugar, 2 tablespoons lemon juice, lemon zest, and a tiny pinch of salt. The glaze should look thick but still drip slowly off the spoon.

If it looks too thick, add a few drops of lemon juice. If it looks too thin, whisk in a spoonful of powdered sugar. Taste and adjust the lemon level to your liking.

Step 10: Glaze and slice

Drizzle the lemon glaze over the cooled or slightly warm loaf, letting it run down the sides. Give it 10–15 minutes so the glaze sets a bit.

Slice with a sharp serrated knife in gentle sawing motions so you do not squash the loaf. Serve thick slices for breakfast or thinner slices for snacks and dessert.

Recipe Variations

Gluten-free: Use a good 1:1 gluten-free baking flour that includes xanthan gum and check that your baking powder and other ingredients list gluten-free on the label.
Vegan: Swap eggs with flax eggs (2 tablespoons ground flax + 6 tablespoons water, rested 5–10 minutes), use plant-based yogurt, and choose a dairy-free glaze by using lemon juice and a splash of non-dairy milk.
Low sugar: Cut the total sugar to 1/2 cup and add a few extra blueberries for natural sweetness, or use a sugar substitute that measures cup-for-cup in baking.
Low carb style: Use a low-carb baking blend and a powdered sweetener in the glaze, and reduce the blueberries slightly.
Nutty version: Fold in 1/2 cup chopped walnuts or pecans with the blueberries.
Citrus twist: Use half lemon zest and half orange zest for a softer citrus flavor.
Spiced version: Add 1/4 teaspoon nutmeg and 1/4 teaspoon cardamom along with the cinnamon.

Ways to Serve Blueberry Zucchini Bread With Lemon Glaze

Serve warm slices with a pat of butter or a swipe of cream cheese.
Toast leftover slices lightly and top with a spoonful of Greek yogurt and extra blueberries.
Pack slices in lunchboxes with carrot sticks and a cheese stick for a balanced snack.
Cut into cubes and serve as part of a fruit-and-yogurt breakfast board.
Enjoy a slice with hot coffee, tea, or iced herbal tea in the afternoon.

Storage Success

Let the blueberry zucchini bread cool completely before you store it so condensation does not make it soggy. Wrap the loaf tightly in plastic wrap or store slices in an airtight container at room temperature for up to 3 days. Move it to the fridge after that if you still have some left, and eat within about a week.

You can freeze the bread by wrapping individual slices in plastic wrap, then placing them in a freezer bag for up to 3 months. Thaw slices at room temperature or warm them gently in the microwave or toaster oven for a fresh-baked feel.