Cinnamon Sugar Zucchini Coffee Cake – Moist & Delicious
Cinnamon Sugar Zucchini Coffee Cake is more than just a treat; it’s a warm hug in cake form, perfect for those cozy mornings or afternoon pick-me-ups. If you’ve ever wondered what to do with that surplus of summer zucchini, look no further! This isn’t your average zucchini bread; our Cinnamon Sugar Zucchini Coffee Cake elevates the humble squash into something truly extraordinary. The magic lies in the subtle moisture zucchini lends to the cake, ensuring an incredibly tender crumb, while the generous swirl of cinnamon sugar creates pockets of pure, caramelized bliss. It’s the ideal companion to your favorite brew, offering a delightful balance of spice and sweetness that will have everyone asking for seconds. Get ready to discover your new go-to recipe!

Cinnamon Sugar Zucchini Coffee Cake
There’s something incredibly comforting about a slice of warm coffee cake, especially when it’s infused with the subtle sweetness of zucchini and the aromatic spice of cinnamon. This Cinnamon Sugar Zucchini Coffee Cake is my go-to recipe for a delightful breakfast, a satisfying afternoon treat, or even a light dessert. The zucchini might sound unusual, but trust me, it works magic. It keeps the cake incredibly moist and tender without imparting any strong vegetable flavor. It’s a fantastic way to sneak in some extra goodness, and your guests will never guess the secret ingredient! The cinnamon-sugar swirl throughout the cake and the crumb topping adds that perfect touch of sweetness and texture that makes this coffee cake truly irresistible. Let’s get baking!
Ingredients:
- 1 1/3 cups brown sugar
- 1/3 cup oil (I used olive oil but Canola oil works too)
- 1 egg
- 1 cup buttermilk (you can sub milk + vinegar, even almond milk!)
- 1 teaspoon baking soda
- 1 teaspoon vanilla
- 1/4 teaspoon salt (I just eyeballed a little pinch)
- 2 1/2 cups all purpose flour
- 1 1/2 cups grated zucchini
- 1 tablespoon orange zest
- 1 cup sugar
- 1 1/2 teaspoons cinnamon
- 2 tablespoons butter
Preparing the Batter
1. First things first, let’s preheat our oven to 350 degrees Fahrenheit (175 degrees Celsius). This ensures that once your batter is ready, it can go straight into a perfectly heated oven for even baking. Next, prepare your baking pan. I like to use a 9×13 inch baking pan for this recipe. Grease it thoroughly with butter or cooking spray and then lightly flour it. This will prevent the cake from sticking and ensure a clean release when it’s time to serve. You can also line the bottom with parchment paper for extra insurance.
2. In a large mixing bowl, we’ll start by creaming together the brown sugar and the oil. I like to use a whisk for this, or an electric mixer on medium speed if you prefer. You want to achieve a light and fluffy texture. This step is important for incorporating air into the batter, which contributes to a tender cake. Beat until the mixture is well combined and no lumps of brown sugar remain.
3. Now, crack in your egg and add the vanilla extract. Mix again until everything is thoroughly incorporated. If you’re using buttermilk, pour it into the bowl. If you don’t have buttermilk on hand, don’t worry! You can easily make a substitute by taking 1 cup of milk (dairy or non-dairy like almond milk) and stirring in 1 tablespoon of white vinegar or lemon juice. Let it sit for about 5-10 minutes until it thickens slightly. This “sour milk” acts as a leavening agent, contributing to the cake’s rise and tenderness. Now, add your baking soda and that pinch of salt. Mix this wet ingredient mixture until it’s smooth and homogenous.
4. In a separate medium bowl, whisk together the all-purpose flour. Then, gently fold in the grated zucchini and the orange zest. Grating the zucchini is best done with the large holes of a box grater. Make sure to squeeze out any excess moisture from the grated zucchini by wrapping it in a clean kitchen towel or paper towels and pressing firmly. This step is crucial to prevent your cake from becoming too wet. The orange zest adds a bright, subtle citrus note that complements the cinnamon beautifully, cutting through the sweetness and adding another layer of complexity.
Creating the Cinnamon Sugar Swirl and Topping
5. Now for the delicious cinnamon sugar swirl and topping! In a small bowl, combine the 1 cup of sugar with the 1 1/2 teaspoons of cinnamon. Mix them well until the cinnamon is evenly distributed throughout the sugar. This will be the heart of our coffee cake’s flavor. Next, in another small bowl, cut in the 2 tablespoons of softened butter using a fork or your fingertips until the mixture resembles coarse crumbs. This is our streusel topping.
Assembling and Baking
6. It’s time to bring it all together! Add the dry ingredients (flour, zucchini, and zest mixture) to the wet ingredients in the large bowl. Gently fold them together using a spatula until *just* combined. Be careful not to overmix, as this can lead to a tough cake. A few streaks of flour are okay.
7. Pour about half of the batter into your prepared baking pan and spread it evenly. Now, sprinkle about half of the cinnamon sugar mixture evenly over this layer of batter. Dollop about half of the butter crumble mixture over the cinnamon sugar. Then, carefully spoon the remaining batter on top and spread it out gently. Finally, sprinkle the rest of the cinnamon sugar mixture and the butter crumble mixture evenly over the top layer of batter. This layering creates those delightful pockets of cinnamon sugar and a wonderfully crunchy topping.
8. Bake your Cinnamon Sugar Zucchini Coffee Cake in the preheated oven for 35-45 minutes. The exact baking time will depend on your oven. To check for doneness, insert a toothpick or a thin knife into the center of the cake. If it comes out clean, the cake is ready. If there’s wet batter on it, continue baking for a few more minutes and test again. You want the top to be golden brown and the edges to be pulling away slightly from the sides of the pan.
9. Once baked, remove the cake from the oven and let it cool in the pan for about 10-15 minutes before attempting to slice and serve. This allows the cake to set up properly, making it easier to cut. For an extra special touch, you can serve it warm with a dollop of whipped cream or a scoop of vanilla ice cream. Enjoy every moist, cinnamon-spiced bite!

Conclusion:
This Cinnamon Sugar Zucchini Coffee Cake is an absolute winner! It’s the perfect way to use up that garden zucchini and transform it into a moist, tender, and incredibly flavorful treat. The warm spices of cinnamon and sugar, combined with the subtle sweetness of the zucchini, create a delightful aroma and taste that will have everyone asking for seconds. It’s proof that you can bake something utterly delicious and surprisingly healthy-ish all at once. This recipe is truly a gem for any baker looking for a simple yet impressive dessert or breakfast option.
I love serving this coffee cake warm, perhaps with a dollop of whipped cream or a light dusting of powdered sugar. It’s also fantastic at room temperature, making it ideal for potlucks or as an afternoon pick-me-up. For variations, feel free to add a handful of chopped pecans or walnuts to the batter for extra crunch, or a swirl of cream cheese frosting for a more decadent finish. Don’t hesitate to experiment! I wholeheartedly encourage you to give this Cinnamon Sugar Zucchini Coffee Cake a try. You won’t regret it!
Frequently Asked Questions:
Can I taste the zucchini in this cake?
Not really! The zucchini melts into the cake as it bakes, adding incredible moisture and tenderness without imparting a strong vegetable flavor. The cinnamon sugar topping is usually the star of the show.
What’s the best way to store leftover coffee cake?
Once cooled, you can store the coffee cake in an airtight container at room temperature for up to 3 days. If you live in a very warm climate, refrigerating it is a good idea to keep it fresh.

Cinnamon Sugar Zucchini Coffee Cake
A moist and flavorful coffee cake packed with grated zucchini and a sweet cinnamon sugar topping.
Ingredients
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1 1/3 cups brown sugar
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1/3 cup oil
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1 egg
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1 cup buttermilk
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1 teaspoon baking soda
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1 teaspoon vanilla
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1/4 teaspoon salt
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2 1/2 cups all purpose flour
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1 1/2 cups grated zucchini
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1 tablespoon orange zest
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1 cup sugar
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1 1/2 teaspoons cinnamon
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2 tablespoons butter
Instructions
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Step 1
Preheat oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan. -
Step 2
In a large bowl, cream together the brown sugar and oil. Beat in the egg and vanilla. -
Step 3
In a separate bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk, beginning and ending with dry ingredients. Mix until just combined. -
Step 4
Fold in the grated zucchini and orange zest. -
Step 5
Pour batter into the prepared baking pan. -
Step 6
In a small bowl, combine the sugar, cinnamon, and melted butter. Sprinkle evenly over the batter. -
Step 7
Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean. -
Step 8
Let cool in the pan before slicing and serving.
Important Information
Nutrition Facts (Per Serving)
It is important to consider this information as approximate and not to use it as definitive health advice.
Allergy Information
Please check ingredients for potential allergens and consult a health professional if in doubt.