Skip to Recipe

• What Is Glazed Lemon Zucchini Bread?
• Tips for Cooking and Prepping
• Recipe Variations and Substitutes
• Serving Suggestions
• Storing, Make-Ahead, and Freezing Tips
• FAQs
• Glazed Lemon Zucchini Bread Recipe

There’s something magical about the combination of fresh zucchini, bright lemon, and crunchy poppy seeds baked into one glorious loaf. This Glazed Lemon Zucchini Bread has a crispy sugared crust on the outside and a tender, sunny-yellow crumb on the inside, making it the perfect quick bread for breakfast, brunch, or an afternoon treat with coffee.

What Is Glazed Lemon Zucchini Bread?

Glazed Lemon Zucchini Bread takes the classic summer squash quick bread and gives it a bright citrus makeover. Shredded zucchini keeps the crumb incredibly moist and tender without adding much flavor of its own, which makes it the perfect blank canvas for bold lemon zest and juice. Toasted poppy seeds add a subtle nutty crunch throughout, echoing the beloved lemon-poppy seed muffin flavor combo we all know and love.

What sets this loaf apart is the finishing touch: before baking, the top gets a generous sprinkle of lemon sugar that bakes into a delicate, crackly crust. Once cooled, the whole loaf is drenched in a simple lemon glaze that seeps into every crevice, creating layers of texture and flavor in every single bite.

Tips for Cooking and Prepping

#1: Squeeze the zucchini dry (but not too dry)

Grate your zucchini and press it in a clean towel to remove excess moisture, but leave a little dampness behind — too much liquid makes a soggy loaf, but too little dries it out.

#2: Toast your poppy seeds first

A quick 2-3 minute toast in a dry skillet wakes up their nutty flavor and prevents them from tasting flat or bitter once baked into the bread.

#3: Rub lemon zest into the sugar

Instead of just tossing zest into the batter, rub it into the granulated sugar with your fingertips first to release the fragrant lemon oils for a much more intense citrus flavor.

#4: Don’t skip the sugar crust step

Sprinkling a mix of lemon zest and coarse sugar on top of the batter before baking is what creates that irresistible crispy, crackly crust — plain sugar alone won’t give you the same shatter.

#5: Glaze while slightly warm, not hot

Let the loaf cool for about 20-30 minutes before glazing; too hot and the glaze melts away completely, too cold and it just sits on top instead of soaking in slightly.

#6: Use a fine grater for zucchini

Fine shreds distribute more evenly through the batter and disappear into the crumb, whereas large shreds can create wet pockets and uneven baking.

Recipe Variations and Substitutes

This bread is easy to customize based on what you have on hand. Swap poppy seeds for chia seeds or toasted sliced almonds for a different crunch, or add a cup of fresh blueberries for a lemon-blueberry twist. For a dairy-free version, substitute the buttermilk with a plant-based milk mixed with a tablespoon of lemon juice, and use a neutral oil instead of melted butter. You can also make this in muffin form for individually portioned treats — just reduce the bake time to about 20-22 minutes.

Serving Suggestions

Slice this bread thick and serve it slightly warm with a pat of salted butter for breakfast, or pair it with a hot cup of tea or coffee for an afternoon pick-me-up. It also makes a lovely addition to a spring or Easter brunch spread alongside fresh fruit, yogurt parfaits, and a quiche. For a more indulgent dessert, try topping a slice with a small scoop of vanilla ice cream and a drizzle of extra lemon glaze.

Storing, Make-Ahead, and Freezing Tips

Store the glazed loaf tightly wrapped or in an airtight container at room temperature for up to 3 days, or in the fridge for up to a week. To make ahead, bake the loaf a day in advance and glaze it just before serving so the sugar crust stays crisp. For freezing, wrap the unglazed loaf tightly in plastic wrap and foil and freeze for up to 3 months; thaw at room temperature and glaze right before serving for the best texture.

FAQs

Do I need to peel the zucchini before shredding?

No peeling needed! The skin is soft, adds subtle flecks of green color, and contains nutrients, so simply wash and shred the zucchini with the skin on.

Why is my zucchini bread soggy in the middle?

This is usually caused by excess moisture from the zucchini or underbaking. Be sure to blot the shredded zucchini with a towel and test doneness with a toothpick in the very center of the loaf before removing it from the oven.

Can I use pre-ground poppy seed filling instead of whole poppy seeds?

It’s best to stick with whole poppy seeds for this recipe, since poppy seed filling is much sweeter and pasty in texture, which will alter both the flavor and the crumb of the bread.

How do I keep the sugar crust crispy after glazing?

Let the loaf cool just until warm (not hot) before glazing, and use a thin glaze rather than a thick frosting so it soaks in slightly instead of dissolving the crunchy sugar topping completely.

Can I make this recipe into muffins instead of a loaf?

Yes, divide the batter into a lined 12-cup muffin tin, sprinkle with the lemon sugar topping, and bake at the same temperature for about 20-22 minutes, or until a toothpick comes out clean.

Glazed Lemon Zucchini Bread Recipe

Prep time: 20 min | Cook time: 55 min | Total time: 75 min | Servings: 10

Ingredients

For the Bread

• 1 1/2 cups all-purpose flour
• 1/2 cup whole wheat flour (or additional all-purpose)
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 2 tablespoons poppy seeds, toasted
• 3/4 cup granulated sugar
• Zest of 2 lemons, divided
• 2 large eggs
• 1/2 cup melted unsalted butter, slightly cooled
• 1/4 cup buttermilk
• 1 teaspoon vanilla extract
• 3 tablespoons fresh lemon juice
• 1 1/2 cups shredded zucchini, lightly pressed dry

For the Lemon Sugar Crust

• 3 tablespoons coarse or granulated sugar
• 1 teaspoon lemon zest

For the Lemon Glaze

• 1 cup powdered sugar
• 2-3 tablespoons fresh lemon juice
• 1/2 teaspoon lemon zest

Instructions

1. Preheat the oven to 350°F (175°C) and grease a 9×5-inch loaf pan, lining it with parchment paper for easy removal.
2. Toast the poppy seeds in a small dry skillet over medium heat for 2-3 minutes, stirring often, until fragrant. Set aside to cool.
3. In a medium bowl, whisk together the flour, whole wheat flour, baking powder, baking soda, salt, and toasted poppy seeds.
4. In a large bowl, rub the lemon zest into the granulated sugar with your fingers until fragrant. Whisk in the eggs, melted butter, buttermilk, vanilla extract, and lemon juice until smooth.
5. Gently fold the dry ingredients into the wet ingredients until just combined, being careful not to overmix.
6. Fold in the shredded zucchini until evenly distributed throughout the batter.
7. Pour the batter into the prepared loaf pan and smooth the top with a spatula.
8. In a small bowl, combine the coarse sugar and lemon zest for the crust topping, then sprinkle evenly over the top of the batter.
9. Bake for 50-60 minutes, tenting loosely with foil after 35 minutes if the top is browning too quickly, until a toothpick inserted in the center comes out clean.
10. Let the loaf cool in the pan for 15 minutes, then transfer to a wire rack to cool for another 15-20 minutes until just warm.
11. Whisk together the powdered sugar, lemon juice, and lemon zest until smooth and pourable, adding more juice or sugar to reach desired consistency.
12. Drizzle the glaze generously over the warm loaf, letting it drip down the sides. Let the glaze set for about 10 minutes before slicing and serving.

For extra lemon flavor, poke a few small holes in the top of the warm loaf before glazing so the glaze soaks deeper into the crumb. This bread also freezes beautifully unglazed if you want to prep ahead for a brunch.