Lemon Blueberry Sheet Cake

Name: Lemon Blueberry Sheet Cake
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 3 cups all-purpose flour; 2 teaspoons baking powder; 1/2 teaspoon baking soda; 1 1/4 teaspoon salt; 1 cup butter (2 sticks), softened; 1 1/2 cups granulated sugar; Juice and zest of 2 lemons (about 1/4 cup lemon juice); 4 large eggs; 1 cup buttermilk; 2 teaspoons vanilla extract; 1 1/2 cups fresh blueberries, tossed with 1 Tbs flour; 2 1/2 cups powdered sugar; 1/3 cup lemon juice

Published: July 8, 2025

by eva

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Lemon Blueberry Sheet Cake is a delightful treat that’s easy to make and perfect for any occasion, from summer BBQs to afternoon snacks. This cake combines bright lemon flavor with juicy blueberries, creating a refreshing dessert that everyone will love. Whether you’re celebrating a birthday or simply satisfying your sweet tooth, this sheet cake is sure to impress.

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Why You’ll Love This Recipe

Quick Preparation: With just 20 minutes of prep time, you can have this delicious cake ready for baking.
Delicious Flavor: The combination of lemon and blueberries creates a burst of fresh flavor in every bite.
Versatile Serving Options: This cake is versatile enough for any occasion – serve it at parties, picnics, or as a simple dessert at home.
Easy to Make: Perfect for bakers of all levels, the straightforward instructions make this recipe approachable and fun.
Beautiful Presentation: The vibrant colors of the blueberries and the glossy lemon glaze make for an eye-catching dessert.

Tools and Preparation

Before you start baking your Lemon Blueberry Sheet Cake, gather your tools and equipment. Having everything ready will streamline your cooking process.

Essential Tools and Equipment

Stand mixer or hand mixer
Mixing bowls
Measuring cups and spoons
Rubber spatula
9×13 baking dish
Parchment paper

Importance of Each Tool

Stand mixer or hand mixer: These tools make creaming the butter and sugar easy, ensuring a light and fluffy batter.
Mixing bowls: Having multiple bowls helps in organizing your ingredients while keeping your workspace tidy.
Rubber spatula: Perfect for gently folding in blueberries without crushing them.

Ingredients

Easy, quick, delicious – and perfect for everything from summer BBQs to tasty snacks!

Ingredients:
– 3 cups all-purpose flour
– 2 teaspoons baking powder
– 1/2 teaspoon baking soda
– 1 1/4 teaspoon salt
– 1 cup butter (2 sticks), softened
– 1 1/2 cups granulated sugar
– Juice and zest of 2 lemons (about 1/4 cup lemon juice)
– 4 large eggs
– 1 cup buttermilk
– 2 teaspoons vanilla extract
– 1 1/2 cups fresh blueberries, tossed with 1 Tbs flour
– 2 1/2 cups powdered sugar
– 1/3 cup lemon juice

How to Make Lemon Blueberry Sheet Cake

Step 1: Preheat the Oven

Preheat the oven to 350 degrees F. Grease a 9×13 baking dish and line it with parchment paper, allowing overhang on the two long sides. This makes removing the cake easier after baking.

Step 2: Prepare the Batter

In a medium mixing bowl, whisk together the dry ingredients: flour through salt. Set aside. In a stand mixer fitted with the paddle attachment (or use a hand mixer), cream together the sugar and butter until light and fluffy.

Add the eggs, vanilla extract, and buttermilk; mix on low until incorporated. Gradually add the dry ingredients until no streaks of flour remain. Then mix in the lemon juice and zest. Gently fold in the blueberries using a rubber spatula.

Step 3: Bake the Cake

Pour the batter into your prepared baking dish. Bake for about 40–45 minutes or until a toothpick inserted into the center comes out with moist crumbs. Allow the cake to cool completely in the pan or remove it before glazing.

Step 4: Add the Glaze

For the glaze, combine powdered sugar with lemon juice. Pour this mixture over the cooled cake. Let it set before garnishing with fresh fruit if desired. Slice into squares, serve, and enjoy!

How to Serve Lemon Blueberry Sheet Cake

Lemon Blueberry Sheet Cake is a delightful dessert perfect for various occasions. Whether it’s a summer gathering or a cozy family dinner, here are some delicious ways to serve it.

For a Refreshing Dessert

Serve with whipped cream – A dollop of freshly whipped cream adds a light and airy texture that complements the cake’s flavors.
Pair with vanilla ice cream – The creamy sweetness of vanilla ice cream balances the tartness of the lemon.

As a Snack

Enjoy with tea or coffee – This cake pairs beautifully with your favorite hot beverage, making it an ideal afternoon snack.
Cut into small squares for easy snacking – Perfect for lunchboxes or quick grab-and-go treats during busy days.

For Special Occasions

Garnish with fresh berries – Adding more blueberries or raspberries on top enhances both presentation and flavor.
Drizzle with lemon glaze – A simple glaze adds an extra zesty punch and makes the cake visually appealing.

How to Perfect Lemon Blueberry Sheet Cake

To achieve the best results when making Lemon Blueberry Sheet Cake, consider these helpful tips.

Use room temperature ingredients – Let butter, eggs, and buttermilk sit out for about 30 minutes before mixing. This helps them blend better and creates a lighter cake.
Don’t overmix the batter – Mix until just combined to maintain the cake’s fluffiness. Overmixing can lead to a dense texture.
Toss blueberries in flour – Coating blueberries in flour before adding them prevents them from sinking to the bottom while baking.
Check doneness carefully – Use a toothpick inserted into the center; it should come out with moist crumbs but not wet batter.
Cool completely before glazing – Allowing the cake to cool ensures the glaze sets properly without melting into the cake.
Store properly – Keep leftovers in an airtight container at room temperature for up to three days, or refrigerate for longer freshness.

Best Side Dishes for Lemon Blueberry Sheet Cake

Lemon Blueberry Sheet Cake pairs well with various side dishes. These options can elevate your dessert experience!

Fresh Fruit Salad – A mix of seasonal fruits like strawberries, kiwi, and melons complements the citrusy flavor of the cake.
Yogurt Parfait – Layer yogurt with granola and fresh berries for a refreshing counterbalance to the sweetness of the cake.
Cucumber Salad – A light cucumber salad dressed in lemon vinaigrette adds a crunchy contrast that enhances your meal.
Cheese Platter – Include mild cheeses like brie or goat cheese alongside crackers for a savory bite that pairs well with sweet desserts.
Grilled Peaches – Warm grilled peaches drizzled with honey provide a fruity accompaniment that works wonderfully in summer.
Minted Green Salad – A salad with arugula, mint, and feta brings brightness and freshness, perfectly complementing your dessert.

Common Mistakes to Avoid

Avoiding common mistakes can elevate your Lemon Blueberry Sheet Cake from good to great. Here are some pitfalls to watch out for:

Using cold ingredients: Always ensure your butter and eggs are at room temperature. This helps in achieving a smooth batter and even baking.
Not measuring flour correctly: Spoon flour into the measuring cup and level it off with a knife to avoid adding too much flour, which can lead to a dense cake.
Overmixing the batter: Mix the ingredients just until combined. Overmixing can result in a tough texture, so be gentle when folding in the blueberries.
Skipping parchment paper: Lining your baking dish with parchment paper makes it easier to lift the cake out after baking. Don’t skip this step!
Not checking doneness: Use a toothpick to test for doneness, but remember that moist crumbs are acceptable. Pull it out of the oven at the right time for a perfect cake.

Storage & Reheating Instructions

Refrigerator Storage

Store your Lemon Blueberry Sheet Cake in an airtight container.
It will stay fresh for up to 5 days in the refrigerator.

Freezing Lemon Blueberry Sheet Cake

Wrap slices tightly in plastic wrap or aluminum foil.
Freeze for up to 3 months for best quality.

Reheating Lemon Blueberry Sheet Cake

Oven: Preheat the oven to 350°F (175°C) and warm for about 10-15 minutes until heated through.
Microwave: Heat individual slices on medium power for about 20-30 seconds.
Stovetop: Place slices in a skillet over low heat, covering with a lid until warmed through.

Frequently Asked Questions

Here are some common questions about making and enjoying Lemon Blueberry Sheet Cake:

Can I use frozen blueberries for Lemon Blueberry Sheet Cake?

Yes, you can use frozen blueberries. Just toss them in flour before adding them to the batter to prevent sinking.

What can I substitute for buttermilk?

You can create a DIY buttermilk by mixing 1 cup of milk with 1 tablespoon of vinegar or lemon juice. Let it sit for 5 minutes before using.

How do I make my Lemon Blueberry Sheet Cake more lemony?

Add extra lemon zest or a bit more lemon juice into the batter or glaze for an enhanced flavor.

Can I make this cake ahead of time?

Absolutely! You can bake and glaze it one day ahead. Just store it covered at room temperature until serving.

Final Thoughts

The Lemon Blueberry Sheet Cake is an easy dessert that brings joy to any occasion, from summer BBQs to family gatherings. Its bright flavors and delicious glaze make it irresistible. Feel free to customize it by adding other fruits or adjusting sweetness levels. Try making this delightful cake—you won’t be disappointed!

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