Moist, warmly spiced, and ribboned with cinnamon sugar, this cinnamon swirl zucchini bread is a simple way to use a glut of summer squash or sneak vegetables into breakfast. The crumb stays tender thanks to yogurt and oil, while the cinnamon ribbon gives every slice a satisfying, bakery-style finish.
Why you’ll love this dish
This loaf balances comfort and nutrition. It’s moist without being greasy, lightly spiced, and quick to mix. Make it for a relaxed weekend brunch, pack it for school lunches, or slice it for an afternoon coffee break.
“I couldn’t believe my kids asked for seconds—moist, flavorful, and not too sweet. Perfect for breakfast or snacks.” — a regular home baker
Benefits at a glance:
- Quick assembly with ordinary pantry staples.
- Kid-friendly and great for using extra zucchini.
- Keeps well and freezes beautifully.
How to make Moist and Delicious Cinnamon Swirl Zucchini Bread
Step-by-step overview:
- Preheat and prep a loaf pan.
- Shred and lightly squeeze the zucchini.
- Whisk wet ingredients together, then fold in dry ingredients.
- Layer batter and cinnamon-sugar to build the swirl.
- Bake until a toothpick comes out clean.
- Cool, slice, serve, or store.
This recipe produces one 9×5-inch loaf.
Ingredients
- 1 cup zucchini, finely shredded (about 1 small–medium zucchini; shredded and lightly packed ≈ 1 cup)
- 2 large eggs, room temperature
- 1/2 cup vegetable oil (substitute: melted neutral oil or melted coconut oil for a subtle flavor)
- 1/2 cup plain Greek yogurt (substitute: sour cream or non-dairy yogurt)
- 1 teaspoon vanilla extract
- 1 1/2 cups all-purpose flour (for lighter loaf, spoon and level the flour)
- 3/4 cup granulated sugar (batter)
- 1 teaspoon baking powder
- 1/2 teaspoon salt
- 1/2 teaspoon ground cinnamon (batter)
- 1/4 teaspoon ground nutmeg
- 1/4 teaspoon ground cloves (optional; or swap for allspice)
- For the cinnamon swirl: 1/2 cup granulated sugar + 1 tablespoon ground cinnamon
Notes:
- If you prefer less sugar, reduce the batter sugar by 1/4 cup and/or cut the swirl sugar in half.
- For gluten-free, use a 1:1 gluten-free flour blend and add 1/4 teaspoon xanthan gum if your blend lacks it.
Directions
- Preheat the oven to 350°F (175°C). Line a 9×5-inch loaf pan with parchment paper and secure the ends with binder clips or grease the pan well.
- Shred the zucchini on the small holes of a box grater. Lightly squeeze the shredded zucchini in a clean dish towel or paper towel to remove excess surface moisture—don’t press until dry, just remove obvious liquid.
- In a large bowl, whisk the eggs until blended. Add the oil, Greek yogurt, and vanilla. Whisk until smooth.
- In a separate bowl, stir together the flour, 3/4 cup sugar, baking powder, salt, 1/2 teaspoon cinnamon, nutmeg, and cloves.
- Gradually add the dry ingredients to the wet. Fold with a spatula until just combined. Mix in the shredded zucchini. Stop as soon as the flour streaks disappear. Overmixing gives a tougher crumb.
- In a small bowl, combine the swirl sugar: 1/2 cup granulated sugar + 1 tablespoon ground cinnamon. Stir until evenly mixed.
- Pour half of the batter into the prepared pan and spread it to the edges in an even layer. Sprinkle half the cinnamon-sugar over the batter.
- Spoon the remaining batter over the cinnamon-sugar and spread gently. Sprinkle the remaining cinnamon-sugar on top.
- Create the swirl: drag a knife lengthwise through the batter a few times, then crosswise once or twice. Don’t over-swirl—the goal is visible ribbons, not complete mixing.
- Bake 60–65 minutes, until the top is golden brown and a toothpick inserted in the center comes out clean or with a few moist crumbs. If the loaf browns too quickly, tent loosely with foil for the last 15 minutes.
- Cool the loaf in the pan for 10–15 minutes. Use the parchment to lift the bread out. Transfer to a wire rack and cool another 30 minutes before slicing for best texture.
- Slice and serve. Store leftovers as directed below.
Best ways to enjoy it
- Warm a slice and slather with cream cheese or softened butter.
- Serve alongside plain yogurt and fresh berries for a brunch board.
- Toast slices lightly and top with ricotta and a drizzle of honey.
- For dessert, add a dollop of mascarpone and a sprinkle of toasted walnuts.
Storage and reheating tips
- Room temperature: Store wrapped or in an airtight container for up to 48 hours. For safety, refrigerate if you’ll keep it longer than two days because of the eggs and yogurt.
- Refrigerator: Keeps well for up to 5 days. Wrap tightly to prevent drying.
- Freezer: Slice first if preferred. Wrap each slice in plastic wrap, then place in a freezer bag or airtight container. Freeze up to 3 months. Thaw at room temperature or warm gently.
- Reheat: Microwave a slice for 12–20 seconds (depending on power) or warm in a 325°F (160°C) oven for 8–12 minutes. A toaster oven gives a lightly crisp edge.
Food safety note: always cool the loaf completely before sealing for storage to avoid condensation and spoilage. Label frozen packages with date.
Helpful cooking tips
- Shred fine: Use the small holes on your grater or the grating disk on a food processor for even moisture distribution.
- Don’t over-squeeze zucchini: Removing surface liquid prevents a soggy loaf but keeping some moisture keeps the crumb tender.
- Measure flour correctly: Spoon flour into the measuring cup and level with a knife. Too much flour makes the bread dense.
- Room-temp eggs and yogurt blend more smoothly and trap fewer air bubbles that can burst during baking.
- Use binder clips to hold parchment in place while pouring batter—less spill and neater edges.
- If you want a taller loaf, bake in two smaller pans or a narrower 9×4 pan and check the baking time—it may finish sooner.
Creative twists
- Nutty: Fold in 1/2 cup chopped walnuts or pecans into the batter for crunch. Save a few to sprinkle on top.
- Chocolate chip: Add 1/2 cup dark chocolate chips to the batter for a dessertier loaf.
- Lemon-cinnamon: Add 1 teaspoon lemon zest to the batter and swap the swirl sugar for cinnamon-lemon sugar.
- Streusel top: Mix 1/3 cup flour, 3 tablespoons butter, 3 tablespoons brown sugar, and a pinch of cinnamon for a crumb topping; sprinkle before baking.
- Vegan/dairy-free: Use a plant-based yogurt and 2 tablespoons ground flaxseed mixed with 6 tablespoons water in place of the eggs (let sit 5–10 minutes).
- Muffin version: Spoon into a lined/misted 12-cup muffin tin; bake 18–22 minutes at 350°F until a toothpick comes out clean.
FAQs
Q: Can I use frozen zucchini?
A: Yes. Thaw frozen shredded zucchini, drain very well, and press out excess moisture before folding into the batter. Excess water can make the loaf dense and underbaked.
Q: How do I know the bread is done?
A: The top should be golden and spring back slightly when touched. A toothpick inserted into the center should come out clean or with a few moist crumbs (not wet batter). If the top browns too fast, tent with foil.
Q: Can I make this recipe into muffins or two small loaves?
A: Yes. For muffins, line a 12-cup tin and fill cups about 2/3 full, bake 18–22 minutes at 350°F. For two small loaves, divide the batter and reduce bake time to 45–55 minutes, checking earlier.
Q: How much zucchini is one cup?
A: One cup finely shredded and lightly packed zucchini equals approximately one small–medium zucchini. If you weigh it, aim for roughly 100–120 grams of shredded zucchini.
Q: Can I reduce the sugar?
A: You can. Decrease the batter sugar by up to 1/4 cup and/or halve the cinnamon-sugar swirl. Be aware the texture and caramelization on top will be slightly different.
Q: Why did my bread turn out soggy in the middle?
A: Common causes are too much moisture (not squeezing zucchini), underbaking, or using a dense pan that prevents heat circulation. Remove excess moisture and test doneness with a toothpick; if it’s done on the outside but soft inside, bake 5–10 more minutes and tent with foil if needed.
If you want, I can convert this into a printable one-page recipe card or scale the recipe for muffins or two loaves. Which would you prefer?
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Cinnamon Swirl Zucchini Bread
- Total Time: 80 minutes
- Yield: 1 loaf
- Diet: Vegetarian
Description
Moist and warmly spiced, this cinnamon swirl zucchini bread uses summer squash to create a tender crumb with a delightful cinnamon ribbon.
Ingredients
- 1 cup zucchini, finely shredded
- 2 large eggs, room temperature
- 1/2 cup vegetable oil
- 1/2 cup plain Greek yogurt
- 1 teaspoon vanilla extract
- 1 1/2 cups all-purpose flour
- 3/4 cup granulated sugar
- 1 teaspoon baking powder
- 1/2 teaspoon salt
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon ground nutmeg
- 1/4 teaspoon ground cloves (optional)
- 1/2 cup granulated sugar (for cinnamon swirl)
- 1 tablespoon ground cinnamon (for cinnamon swirl)
Instructions
- Preheat the oven to 350°F (175°C) and prepare a 9×5-inch loaf pan.
- Shred the zucchini and lightly squeeze to remove excess moisture.
- Whisk eggs, oil, yogurt, and vanilla in a large bowl until smooth.
- Stir dry ingredients together in another bowl and fold into the wet ingredients.
- Add the zucchini and mix until just combined.
- Mix cinnamon-sugar for the swirl and pour half the batter into the pan.
- Sprinkle half the cinnamon-sugar over the batter and add remaining batter.
- Top with remaining cinnamon-sugar and swirl gently with a knife.
- Bake for 60–65 minutes until a toothpick comes out clean.
- Cool for 10 minutes in the pan, then transfer to a wire rack to cool completely before slicing.
Notes
For a gluten-free version, use a 1:1 gluten-free flour blend and add xanthan gum if necessary.
- Prep Time: 15 minutes
- Cook Time: 65 minutes
- Category: Bread
- Method: Baking
- Cuisine: American