Lemon Blueberry Zucchini Cake

If you’re looking for a fresh way to use up your zucchini, this Lemon Blueberry Zucchini Cake is a delightful surprise! I’ve always loved the bright, tangy pairing of lemon and blueberries, so when I stumbled across this recipe from Kara’s Kitchen Creations, I couldn’t resist giving it a try—with a few tweaks of my own. The result was a dense, moist cake bursting with citrus flavor and juicy berries, and you’d never guess there’s zucchini tucked inside. It blends right in, adding extra moisture without a trace of veggie taste.

The only thing I’d change next time? I’d dial back the blueberries to 1½ cups so the cake’s lemon flavor can shine a little more. It’s delicious enough to stand on its own, but a layer of lemon cream cheese frosting takes it to the next level—sweet, tangy, and totally irresistible. Whether you serve it frosted or plain, this cake is a beautiful way to celebrate summer’s bounty.

Ingredients For Lemon Blueberry Zucchini Cake with Lemon Cream Cheese Frosting

• ZUCCHINI – Shredded zucchini adds lots of moisture to the cake and helps keep it soft and tender. Its mild flavor blends right in, so you get the texture benefits without a strong zucchini taste.
• SUGAR – Sugar sweetens the cake and also helps create a soft, moist crumb. It balances the tart lemon and fresh blueberries.
• EGGS – Eggs provide structure, richness, and moisture. They also help bind all of the ingredients together.
• OIL – Oil keeps the cake moist and tender, even after it has cooled. A neutral oil such as canola or vegetable oil works best so it does not compete with the lemon flavor.
• LEMON EXTRACT (OPTIONAL) – Lemon extract boosts the citrus flavor and makes the lemon taste more pronounced. It is optional since the cake already gets plenty of fresh lemon flavor from the zest and juice.
• FLOUR – Flour gives the cake its structure. Measure it carefully so the cake stays light and tender rather than becoming dense.
• SALT – Salt balances the sweetness and enhances the lemon, blueberry, and cream cheese flavors.
• BAKING SODA – Baking soda helps the cake rise and contributes to a tender texture.
• BAKING POWDER – Baking powder provides additional lift so the cake bakes up soft and fluffy.
• LEMON ZEST – Lemon zest adds bright, fresh citrus flavor without adding extra liquid. The oils in the peel give the cake a stronger natural lemon taste.
• BLUEBERRIES – Blueberries add bursts of juicy sweetness throughout the cake. Fresh berries work beautifully, and frozen blueberries can usually be used without thawing first.
• BUTTER – Butter adds richness and flavor to the cream cheese frosting. Allow it to soften before mixing so the frosting turns out smooth.
• CREAM CHEESE (I USED REDUCED FAT) – Cream cheese creates the rich, tangy base for the frosting and pairs especially well with lemon and blueberries. Reduced-fat cream cheese can be used for a slightly lighter frosting.
• POWDERED SUGAR – Powdered sugar sweetens and thickens the frosting while helping create a smooth, spreadable consistency.
• FRESH LEMON JUICE – Fresh lemon juice adds bright citrus flavor and a little tang to the cream cheese frosting. Add it gradually so you can control both the flavor and consistency of the frosting.

Instructions For Lemon Blueberry Zucchini Cake Recipe

Prepare the Cake Batter – In a large bowl, beat together the peeled and shredded zucchini, granulated sugar, eggs, vegetable oil, and lemon extract (optional, but adds a lovely citrus boost). Mix until smooth and well combined.

Combine the Dry Ingredients – In a separate bowl, sift together the all-purpose flour, salt, baking soda, and baking powder. Stir in the zest of one lemon for extra flavor.

Mix & Fold – Gradually stir the dry ingredients into the wet mixture until just combined. Then gently fold in fresh blueberries, being careful not to overmix.

Bake the Cake – Pour batter into a well-greased and floured Bundt pan. Bake in a 325°F oven for 60–65 minutes, or until a toothpick inserted in the center comes out clean. Let the cake rest in the pan for 5–10 minutes, then invert onto a wire rack to cool completely.

Instructions For Lemon Cream Cheese Frosting

In a medium bowl, beat together the softened butter and softened cream cheese (reduced fat works too). Once smooth, add in powdered sugar, salt, zest of one lemon, and fresh lemon juice to reach a spreadable consistency. Beat until light and fluffy, then spread over the cooled cake.

Frequently Asked Questions

Can you taste the zucchini in the cake?
Not at all! The zucchini adds moisture and texture but blends right in—you’d never guess it’s there unless someone told you.

Do I need to peel the zucchini before shredding?
It’s optional. Peeling gives a smoother look, but leaving the skin on adds flecks of green and a bit more fiber. Just be sure to remove seeds if using a large zucchini.

How do I prevent the blueberries from sinking?
Toss them in a teaspoon of flour before folding into the batter. This helps suspend them evenly throughout the cake.

Can I use frozen blueberries?
Yes! Use them straight from the freezer and toss in flour first. Just note they may release more moisture and tint the batter slightly blue.

How long does the cake keep?
Store it covered in the fridge for up to 5 days. You can also freeze individual slices for up to 1 month—just thaw and enjoy.

Can I skip the frosting?
Definitely, the cake is flavorful enough to stand on its own, but the lemon cream cheese frosting adds a tangy, indulgent finish.

Can I make this into cupcakes or a loaf?
Yes! For cupcakes, bake at 350°F for 20–25 minutes. For a loaf, extend baking time to 60–70 minutes and check with a toothpick.

What’s the best way to shred zucchini?
Use a box grater or food processor. After shredding, gently squeeze out excess water using a clean towel or cheesecloth.

Tips and Tricks

• Gently squeeze out excess moisture from the zucchini. After shredding the zucchini, use a clean kitchen towel or paper towels to remove some of the extra liquid. Don’t squeeze it completely dry—the zucchini is what helps keep this cake so moist.
• Toss the blueberries with a little flour. Coating the blueberries in a small amount of flour before folding them into the batter can help keep them suspended throughout the cake instead of sinking to the bottom.
• Don’t overmix the batter. Once you add the dry ingredients, stir only until everything is combined. Then gently fold in the blueberries so the cake stays tender and the berries don’t break apart.
• Grease and flour the Bundt pan really well. Make sure you get into all the grooves of the pan so the moist cake releases cleanly. I like to use a baking spray. Let it rest in the pan for about 5–10 minutes after baking before turning it onto a cooling rack.
• Cool the cake completely before frosting. The lemon cream cheese frosting can melt and slide off if the cake is still warm. Let the cake cool completely, then spread on the frosting for the best texture and appearance.

FOR MORE RECIPES LIKE THIS, TRY:

• Blueberry Zucchini Bread
• Zucchini Blueberry Muffins
• Heavenly Blueberry Lemon Bread
• Blueberry Banana Cake with Lemon Cream Cheese Frosting