Blueberry Lemon Olive Oil Cake

By Anni

Published

There’s just something about the smell of citrus and warm berries baking that instantly takes me back to my grandmother’s kitchen. She always had a little something sweet on hand, and many of her recipes were simple, comforting, and just bursting with fresh flavors. This Blueberry Lemon Olive Oil Cake feels like a modern twist on those cherished memories. It’s incredibly easy to make, yet it delivers on all the bright, tender, and utterly delicious notes you crave.

Blueberry Lemon Olive Oil Cake - finished dish

Why You’ll Love This Blueberry Lemon Olive Oil Cake

  • It’s so incredibly moist and tender, thanks to the olive oil. No dry cake here!
  • The flavors are perfectly balanced – bright lemon, sweet blueberries, and a subtle richness from the olive oil.
  • You won’t believe how easy it is to whip up. Seriously, one bowl and minimal fuss!
  • It’s perfect for any occasion, from a casual brunch to a fancy dessert.

Ingredients You’ll Need

  • Milk: Use any kind you like! Regular dairy milk works beautifully, but plant-based milk is also a great option if you prefer.
  • Lemon Juice: Freshly squeezed is always best for that vibrant, zesty flavor. It also reacts with the baking soda to give the cake its lovely lift.
  • Cane Sugar: This provides the perfect amount of sweetness without being overpowering.
  • Olive Oil: This is the star ingredient! It contributes to the cake’s incredible moisture and tender crumb. Choose a good quality, mild-flavored olive oil.
  • Vanilla Extract: Enhances all the other flavors.
  • Lemon Extract: This is optional, but if you really love a strong lemon punch, don’t skip it! It brightens everything up.
  • Baking Powder & Baking Soda: These are our leavening agents, working together to make the cake light and fluffy.
  • Salt: Just a pinch helps to balance the sweetness and bring out the flavors.
  • All-Purpose Flour: Regular or a good quality gluten-free all-purpose flour blend will work here.
  • Frozen Blueberries: Using frozen blueberries helps them stay suspended in the batter and prevents them from sinking to the bottom. No need to thaw!
  • Soft Butter & Cream Cheese: For the glaze, these two together create a wonderfully creamy and slightly tangy topping. Make sure they are softened to room temperature for easy mixing.
  • Powdered Sugar: The base for our sweet, smooth glaze.

How to Make Blueberry Lemon Olive Oil Cake Step by Step

First things first, let’s get that oven ready! Preheat it to 350°F (175°C). While it’s warming up, grab your 9×9 or 8×8 square baking dish. You can either grease it well or line it with parchment paper – I always go for parchment for easy lifting later. This makes cleanup a breeze!

Now, for the cake batter itself. In a big mixing bowl, you’re going to combine all the wet ingredients and the dry leavening agents: milk, lemon juice, sugar, olive oil, vanilla extract, lemon extract (if you’re using it), baking powder, baking soda, and that little pinch of salt. Give it a good whisk until everything is nicely combined. This is where the magic starts!

Next, add your flour to the wet mixture. Mix it gently until you have a smooth batter. Don’t overmix, or your cake might get tough. Just until it’s combined! Finally, carefully fold in those frozen blueberries. Pour the beautiful batter into your prepared baking dish and pop it into the preheated oven. Bake for about 40 minutes, or until a toothpick inserted into the center comes out clean. While the cake is baking, quickly whip up the glaze by mixing the butter, cream cheese, and powdered sugar until smooth. Once the cake is out of the oven, let it cool completely before spreading that delicious glaze over the top. Then, slice and enjoy!

Blueberry Lemon Olive Oil Cake - step by step

My Top Tips for Success

  • I always recommend using fresh lemon juice for the best flavor. It really makes a difference!
  • In my experience, using frozen blueberries straight from the freezer helps them stay suspended in the batter. Don’t thaw them!
  • Trust me on this one: don’t overmix the batter once the flour is added. Mix just until combined for a tender cake.
  • Make sure your butter and cream cheese are truly soft for the glaze. It makes for a much smoother, lump-free topping.
  • Always let the cake cool completely before glazing. Otherwise, the glaze will just melt right off!
  • A good quality olive oil, not too strong in flavor, will give you the best results for this cake.

Common Mistakes to Avoid

  • Overmixing the batter: This develops the gluten too much, leading to a tough, dry cake. Mix until just combined.
  • Thawing the blueberries: Thawed blueberries can bleed into the batter, turning your cake purple. Keep them frozen!
  • Glazing a warm cake: The glaze will melt and slide off, making a mess. Always wait until the cake is completely cool.
  • Using cold butter/cream cheese for glaze: This will result in a lumpy glaze that’s hard to spread. Ensure they are at room temperature.

How to Store Blueberry Lemon Olive Oil Cake

  • Countertop: Store covered at room temperature for up to 2-3 days.
  • Refrigerator: For longer storage, cover tightly and refrigerate for up to 5 days. Bring to room temperature before serving for best flavor.
  • Freezer: Wrap individual slices or the whole cake tightly in plastic wrap, then foil, and freeze for up to 2 months. Thaw overnight in the refrigerator.

Frequently Asked Questions

What kind of olive oil should I use?

I recommend using a good quality, mild or light-flavored extra virgin olive oil. A robust, peppery olive oil might overpower the delicate lemon and blueberry flavors.

Can I use fresh blueberries instead of frozen?

Yes, you can! If using fresh blueberries, toss them lightly with a tablespoon of flour before folding them into the batter. This helps prevent them from sinking to the bottom.

Can I make this cake gluten-free?

Absolutely! The recipe specifically mentions that regular or gluten-free all-purpose flour works. Just ensure your gluten-free blend is a good quality one that contains xanthan gum.

How do I know when the cake is fully cooked?

The best way is to insert a toothpick into the center of the cake. If it comes out clean, with no wet batter attached, your cake is done.

Can I skip the lemon extract?

Yes, the lemon extract is optional. The cake will still have a lovely lemon flavor from the lemon juice, but the extract just boosts it for true lemon lovers.

I really hope you give this Blueberry Lemon Olive Oil Cake a try! It’s quickly become a favorite in my kitchen, and I know you’ll love its bright flavors and tender crumb. If you make it, please let me know how it turns out – I’d love to hear from you!

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Blueberry Lemon Olive Oil Cake

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A deliciously moist and tender cake bursting with bright lemon and sweet blueberries, made effortlessly with olive oil.

  • Author: Anni
  • Prep Time: 15
  • Cook Time: 40
  • Total Time: 55
  • Yield: 9 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 1 cup milk regular or plant-based
  • ½ cup lemon juice
  • 1 cup cane sugar
  • ½ cup olive oil
  • 1 teaspoon vanilla extract
  • ½ teaspoon lemon extract optional
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • a pinch of salt
  • 2 ¼ cup regular or gluten-free all purpose flour
  • 1 cup frozen blueberries
  • 2 tablespoon soft butter regular or plant-based
  • 2 tablespoon cream cheese regular or plant-based
  • ¾ cup powdered sugar

Instructions

  1. Preheat the oven to 350°F (175°C).
  2. Grease a 9×9 or 8×8 square baking dish, or line it with parchment paper.
  3. In a large mixing bowl, combine the milk, lemon juice, sugar, olive oil, vanilla extract, lemon extract (if using), baking powder, baking soda, and salt.
  4. Mix thoroughly until all ingredients are well combined.
  5. Add the flour to the wet mixture.
  6. Mix until a smooth batter is formed, being careful not to overmix.
  7. Add the frozen blueberries to the batter.
  8. Gently fold the blueberries into the batter until evenly distributed.
  9. Pour the batter into the prepared baking dish.
  10. Place the baking dish in the preheated oven.
  11. Bake for 40 minutes, or until the center is completely cooked through (a toothpick inserted comes out clean).
  12. While the cake is baking, prepare the glaze: In a small bowl, combine the soft butter, cream cheese, and powdered sugar.
  13. Whisk or use a fork to mix the glaze ingredients until smooth.
  14. Once the cake is done baking, remove it from the oven.
  15. Allow the cake to cool completely in the baking dish.
  16. Serve the cooled cake topped with the prepared glaze.
  17. Enjoy your Blueberry Lemon Olive Oil Cake!

Notes

Use fresh lemon juice for the best, brightest flavor.
Do not thaw the frozen blueberries; add them directly to the batter.
Ensure butter and cream cheese are at room temperature for a smooth glaze.
Let the cake cool completely before glazing to prevent the glaze from melting.

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Manuela, The Flaky Truth

About Manuela

Manuela is the recipe developer, photographer, and writer behind The Flaky Truth. Raised between Moroccan warmth and American comfort and now baking from sunny California, she is known for approachable, high-reward recipes — easy, fun, and made right at home.

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