
Indulge in this Lemon Blueberry Sheet Cake, a refreshing dessert that combines the zestiness of lemon with sweet blueberries. Whether it’s for a summer picnic or a family gathering, this easy-to-make cake is sure to impress. It features a moist lemon cake mix, a delightful blueberry swirl, and a tangy lemon glaze that ties everything together. Its crowd-pleasing qualities make it perfect for any occasion!
Why You’ll Love This Lemon Blueberry Sheet Cake
This cake is not just delicious; it has several standout features that make it a go-to recipe.
- Easy to Make: With simple ingredients and quick preparation, this cake comes together in no time.
- Crowd-Pleasing Flavor: The combination of lemon and blueberry creates a delightful balance that everyone will enjoy.
- Versatile Dessert: Perfect for summer gatherings, birthdays, or just because—this cake suits any occasion.
- Moist and Light Texture: The addition of sour cream and pudding mix ensures a tender crumb that melts in your mouth.
- Beautiful Presentation: The marbled effect from the blueberry swirl makes this cake as beautiful as it is tasty.
Tools and Preparation
To create your Lemon Blueberry Sheet Cake, you’ll need a few essential tools to ensure success.
Essential Tools and Equipment
- Stand mixer or large mixing bowl
- Rubber spatula
- Large cookie sheet (11×17 pan)
- Glass measuring cup
- Fork
Importance of Each Tool
- Stand mixer or large mixing bowl: Essential for thoroughly mixing the batter to achieve that perfect texture.
- Rubber spatula: Helps scrape down the sides of the bowl, ensuring all ingredients are well mixed.
- Large cookie sheet: Provides ample space for the batter to spread evenly while baking.
Ingredients
For the Cake Batter
- 1 lemon cake mix
- 1 (3.4 ounce) box instant lemon pudding
- 1/4 C flour
- 1/3 C oil
- 4 eggs
- 1 1/2 C water
- 1 tsp vanilla
- 1/3 C sour cream
- 1 Tb lemon zest
For the Blueberry Swirl
- 1 (21 ounce) can blueberry pie filling
- 2 Tb butter, melted
- 1 tsp vanilla
- dash salt
For the Lemon Glaze
- 1/4 C fresh lemon juice
- 1 tsp lemon zest
- 3 C powdered sugar
- 2 Tb milk
- 1 tsp vanilla
- dash salt

How to Make Lemon Blueberry Sheet Cake
Step 1: Preheat the Oven
Preheat your oven to 350 degrees Fahrenheit.
Step 2: Prepare the Cake Batter
- In your stand mixer or large mixing bowl, combine the lemon cake mix, instant pudding mix, and flour. Toss together until mixed.
- Add oil, eggs, water, vanilla, sour cream, and lemon zest to the dry ingredients. Mix on low speed for 1 minute.
- Scrape down the bottom of the bowl with a rubber spatula and mix again on medium speed for another 2 minutes until thick and glossy.
Step 3: Prepare Your Baking Pan
Spray a large cookie sheet (11×17 pan) with cooking spray to prevent sticking. Pour the batter evenly over the pan.
Step 4: Make the Blueberry Swirl
In a large glass measuring cup:
1. Combine blueberry pie filling, melted butter, vanilla, and salt.
2. Heat in the microwave for about 1 minute until warm for easier handling.
Step 5: Create Swirls
Drop small spoonfuls of the blueberry mixture onto the top of the cake batter about 1 inch apart. Use a butter knife to gently swirl through both mixtures to create a marbled effect.
Step 6: Bake Your Cake
Bake in your preheated oven for about 20 minutes or until a toothpick inserted into the center comes out clean. Allow cooling for about 5 minutes before glazing.
Step 7: Prepare Lemon Glaze
While your cake bakes:
Whisk together fresh lemon juice, lemon zest, powdered sugar, milk, vanilla, and salt until smooth. The glaze should be thin enough to drizzle but not as thick as frosting.
Step 8: Poke Holes in Cake
When your cake is still warm:
Use a fork to poke holes every 2-3 inches across its surface.
Step 9: Drizzle Lemon Glaze
Immediately drizzle your prepared Lemon Glaze all over the top of the warm cake. Use a knife to spread it out evenly across the surface.
Enjoy serving this remarkable Lemon Blueberry Sheet Cake at your next event!
How to Serve Lemon Blueberry Sheet Cake
Lemon Blueberry Sheet Cake is a versatile dessert that can be enjoyed in various ways. Whether for brunch, a picnic, or a gathering, this cake’s bright flavors and delightful texture make it a crowd-pleaser.
For Brunch
- Pair with Fresh Fruit: Serve slices alongside fresh berries or citrus fruits for a refreshing contrast.
- Accompany with Whipped Cream: A dollop of whipped cream adds richness and enhances the cake’s lemon flavor.
As a Party Dessert
- Serve in Individual Portions: Cut the cake into squares and serve on decorative plates for an elegant presentation.
- Add Ice Cream: Offer scoops of vanilla or lemon sorbet to complement the cake’s zesty profile.
For Afternoon Tea
- Include with Tea Varieties: This cake pairs wonderfully with herbal teas or iced tea, making it perfect for a relaxed afternoon.
- Garnish with Mint Leaves: Add fresh mint leaves on top of each slice for an aromatic touch.
How to Perfect Lemon Blueberry Sheet Cake
To ensure your Lemon Blueberry Sheet Cake turns out perfectly every time, follow these helpful tips.
- Use Fresh Ingredients: Always opt for fresh lemons and blueberries to enhance flavor and aroma.
- Don’t Overmix the Batter: Mix just until combined; overmixing can result in a dense cake.
- Check Oven Temperature: Ensure your oven is properly calibrated to avoid underbaking or overbaking.
- Let It Cool Before Glazing: Allow the cake to cool slightly before adding the lemon glaze for a better absorption of flavors.

Best Side Dishes for Lemon Blueberry Sheet Cake
When serving Lemon Blueberry Sheet Cake, consider pairing it with complementary side dishes that enhance its bright flavors. Here are some great options:
- Greek Yogurt Parfait: Layer Greek yogurt with granola and mixed berries for a refreshing side.
- Citrus Salad: A salad made from oranges and grapefruits drizzled with honey adds brightness.
- Cheese Platter: Include mild cheeses like brie or goat cheese to balance the sweetness of the cake.
- Pineapple Salsa: A zesty pineapple salsa offers a tropical twist that pairs well with the lemony notes.
- Chilled Cucumber Soup: Light and refreshing, this soup complements the dessert without overpowering it.
- Fruit Skewers: Colorful fruit skewers provide an easy-to-eat option that adds variety to your serving table.
Common Mistakes to Avoid
When making your Lemon Blueberry Sheet Cake, avoiding common pitfalls can elevate your baking game and ensure a perfect result.
- Skipping the Pudding Mix: The instant lemon pudding adds moisture and richness. Always include it for the best texture.
- Not Swirling Properly: A good swirl creates beautiful marbling. Use a butter knife gently to combine the blueberry filling without overmixing.
- Ignoring Cooling Time: Letting the cake cool before adding the glaze prevents it from soaking in too much. Allow at least 5 minutes of cooling.
- Using Cold Ingredients: Room temperature eggs and sour cream mix better, leading to a smoother batter. Always bring ingredients to room temperature before mixing.
- Overbaking the Cake: Overbaking dries out your cake. Keep an eye on it, and check with a toothpick around the 20-minute mark.
Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container.
- The cake stays fresh for up to 5 days in the refrigerator.
Freezing Instructions
- Wrap individual slices in plastic wrap, then place them in a freezer-safe bag.
- Lemon Blueberry Sheet Cake can be frozen for up to 3 months.
Reheating Instructions
- Oven: Preheat to 350°F (175°C) and warm slices for about 10 minutes for even heating.
- Microwave: Heat on medium power for 15-20 seconds per slice, checking frequently to avoid overheating.
- Stovetop: Place slices in a skillet over low heat, cover, and warm for about 5 minutes.

Frequently Asked Questions
How can I enhance my Lemon Blueberry Sheet Cake?
Adding nuts or coconut flakes can add texture. You can also experiment with different fruits like raspberries or strawberries.
Can I make this cake gluten-free?
Yes! Substitute the flour with a gluten-free blend that measures cup-for-cup, ensuring that all other ingredients are also gluten-free.
What makes this Lemon Blueberry Sheet Cake so special?
The combination of zesty lemon and sweet blueberries creates an irresistible flavor balance, making it ideal for gatherings or casual afternoons.
Can I use fresh blueberries instead of pie filling?
Absolutely! Fresh blueberries can be used; just toss them in some sugar to enhance their sweetness before swirling them into the batter.
How should I serve my Lemon Blueberry Sheet Cake?
This delightful cake is perfect as-is or topped with whipped cream or ice cream for an extra treat!
Final Thoughts
The Lemon Blueberry Sheet Cake is not only easy to make but also incredibly versatile. Its bright flavors make it perfect for summer parties or any celebration. Feel free to customize with different fruits or glazes to suit your taste!

Lemon Blueberry Sheet Cake
Indulge in the delightful flavors of Lemon Blueberry Sheet Cake, a vibrant dessert that perfectly balances the tanginess of lemon with the sweetness of blueberries. This moist cake features a luscious swirl of blueberry pie filling and is crowned with a zesty lemon glaze that elevates it to a crowd-pleasing favorite. Ideal for summer picnics, birthdays, or any gathering, this easy-to-make treat comes together quickly and is sure to impress your guests. With its beautiful marbled presentation and light texture, it can be enjoyed on its own or paired with whipped cream for an extra touch of indulgence.
- Total Time: 35 minutes
- Yield: Approximately 24 servings 1x
Ingredients
- 1 lemon cake mix
- 1 (3.4 ounce) box instant lemon pudding
- 1/4 cup flour
- 1/3 cup oil
- 4 eggs
- 1 1/2 cups water
- 1 tsp vanilla extract
- 1/3 cup sour cream
- 1 Tb lemon zest
- 1 (21 ounce) can blueberry pie filling
- For Lemon Glaze: 1/4 cup fresh lemon juice
- 3 cups powdered sugar
Instructions
- Preheat oven to 350°F (175°C).
- In a large bowl, combine cake mix, pudding mix, and flour. Add oil, eggs, water, vanilla, sour cream, and lemon zest; mix on low speed for 1 minute then medium speed for another 2 minutes until smooth.
- Spray an 11×17-inch cookie sheet with cooking spray and pour in batter.
- For the blueberry swirl: Combine blueberry pie filling with melted butter, vanilla, and salt in a microwave-safe bowl; heat briefly to warm.
- Drop spoonfuls of blueberry mixture over the batter and swirl gently with a knife.
- Bake for about 20 minutes or until a toothpick comes out clean.
- Allow cooling slightly before drizzling lemon glaze made from whisking together lemon juice and powdered sugar.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Category: Desserts
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice (approx. 90g)
- Calories: 247
- Sugar: 19g
- Sodium: 178mg
- Fat: 10g
- Saturated Fat: 1g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 37g
- Fiber: <1g
- Protein: 3g
- Cholesterol: 45mg
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