Lemon Blueberry Sheet Cake is the perfect balance of sweet and tangy flavors, making it an ideal dessert for warm-weather gatherings. With fresh lemon juice, fragrant zest, and bursts of juicy blueberries, this cake delivers a refreshing taste in every bite.
This Lemon Blueberry Sheet Cake is designed for simplicity and convenience. Baked in a single pan, it’s easy to prepare, serve, and transport—perfect for BBQs, potlucks, and summer celebrations. The soft, tender crumb combined with a bright lemon glaze creates a dessert that feels both light and indulgent.
In this guide, you’ll learn how to make Lemon Blueberry Sheet Cake step-by-step, along with expert tips for achieving the perfect texture and flavor every time.
Ingredients for Lemon Blueberry Sheet Cake
Cake Ingredients Table
| Ingredient | Quantity | Notes |
|---|---|---|
| All-purpose flour | 3 cups | Spoon and level |
| Baking powder | 2 teaspoons | Leavening |
| Baking soda | 1/2 teaspoon | Helps rise |
| Salt | 1 1/4 teaspoons | Balances flavor |
| Butter | 1 cup | Softened |
| Granulated sugar | 1 1/2 cups | Sweetness |
| Lemon juice | 1/4 cup | Freshly squeezed |
| Lemon zest | From 2 lemons | Adds brightness |
| Eggs | 4 large | Room temperature |
| Buttermilk | 1 cup | Moisture |
| Vanilla extract | 2 teaspoons | Flavor depth |
| Blueberries | 1 1/2 cups | Tossed in flour |
Lemon Glaze
| Ingredient | Quantity |
|---|---|
| Powdered sugar | 2 1/2 cups |
| Lemon juice | 1/3 cup |
Step-by-Step Instructions
1. Prepare the Pan and Oven
Preheat oven to 350°F. Grease a 9×13 baking dish and line with parchment paper, leaving an overhang for easy removal.
2. Mix the Dry Ingredients
In a medium bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.
3. Cream Butter and Sugar
In a stand mixer, beat softened butter and sugar until light and fluffy. This step ensures a soft, airy cake texture.
4. Add Wet Ingredients
Mix in eggs, vanilla extract, and buttermilk until fully combined.
5. Combine Batter
Gradually add dry ingredients to the wet mixture, mixing until just combined. Stir in lemon juice and zest.
6. Fold in Blueberries
Gently fold in flour-coated blueberries to prevent sinking and ensure even distribution.
7. Bake the Cake
Pour batter into prepared pan and smooth the top. Bake for 40–45 minutes, or until a toothpick inserted in the center comes out with moist crumbs.
8. Cool and Glaze
Allow cake to cool completely. Mix powdered sugar and lemon juice to create glaze, then drizzle over the cake. Let it set before serving.
Helpful Tips for the Perfect Cake
- Toss blueberries in flour to keep them from sinking
- Use fresh lemon juice for the best flavor
- Don’t overmix the batter to keep the cake tender
- Let the cake cool fully before glazing
- Add extra zest for a stronger citrus flavor
Serving, Storing, and Making Ahead
Lemon Blueberry Sheet Cake is perfect for gatherings and easy storage.
Serving: Slice into squares and serve with fresh berries or whipped cream for an extra treat.
Storing: Keep covered at room temperature for up to 2 days or refrigerate for up to 5 days.
Freezing: Freeze slices individually for up to 2 months. Thaw at room temperature before serving.
Make Ahead: Bake the cake a day in advance and glaze just before serving for the freshest presentation.
Conclusion
Lemon Blueberry Sheet Cake is a simple yet impressive dessert that captures the essence of summer in every bite. Its bright citrus flavor, soft texture, and juicy blueberries make it a crowd-pleasing favorite for any occasion.
With easy preparation and beautiful presentation, this cake is a must-have recipe for your dessert collection. Whether you’re baking for a party or a casual family treat, it’s guaranteed to be a hit.
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Lemon Blueberry Sheet Cake for a Crowd (Easy Summer Dessert)
- Total Time: 1 hour
- Yield: 12 servings
- Diet: Vegetarian
Description
A bright, moist, and crowd-pleasing Lemon Blueberry Sheet Cake made with fresh lemon juice, lemon zest, buttermilk, and juicy blueberries, then finished with a sweet lemon glaze. Perfect for summer parties, birthdays, potlucks, and easy family desserts.
Ingredients
3 cups all-purpose flour
2 teaspoons baking powder
1/2 teaspoon baking soda
1 1/4 teaspoons salt
1 cup butter (2 sticks), softened
1 1/2 cups granulated sugar
Juice of 2 lemons (about 1/4 cup lemon juice)
Zest of 2 lemons
4 large eggs
1 cup buttermilk
2 teaspoons vanilla extract
1 1/2 cups fresh blueberries, tossed with 1 tablespoon flour
For the glaze:
2 1/2 cups powdered sugar
1/3 cup lemon juice
Instructions
1. Preheat the oven to 350°F. Grease a 9×13-inch baking dish and line it with parchment paper, leaving overhang on the long sides for easy removal.
2. In a medium mixing bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
3. In a stand mixer fitted with the paddle attachment, or using a hand mixer, cream together the softened butter and granulated sugar until light and fluffy.
4. Add the eggs, vanilla extract, and buttermilk, then mix on low speed until incorporated.
5. Add the dry ingredients and mix just until no streaks of flour remain.
6. Mix in the lemon juice and lemon zest until combined.
7. Gently fold in the blueberries with a spatula, being careful not to overmix.
8. Pour the batter into the prepared baking dish and spread evenly.
9. Bake for 40 to 45 minutes, or until a toothpick inserted in the center comes out with moist crumbs.
10. Let the cake cool completely in the pan or lift it out using the parchment paper if preferred.
11. To make the glaze, whisk together the powdered sugar and lemon juice until smooth.
12. Pour or drizzle the glaze evenly over the cooled cake.
13. Let the glaze set before slicing.
14. Garnish with extra fresh blueberries or lemon zest if desired, then serve.
Notes
Tossing the blueberries with a little flour helps prevent them from sinking to the bottom of the cake.
Use fresh lemon juice and zest for the brightest flavor.
Do not overmix the batter once the flour is added, or the cake may turn out dense.
Let the cake cool completely before glazing so the glaze sets nicely on top.
Store leftovers tightly covered at room temperature for up to 2 days or in the refrigerator for up to 5 days.
- Prep Time: 15 mins
- Cook Time: 45 mins
- Category: Dessert
- Method: Baked
- Cuisine: American
FAQ: Lemon Blueberry Sheet Cake
1. Can I use frozen blueberries?
Yes, but do not thaw them before adding to the batter to avoid excess moisture.
2. How do I make the cake more lemony?
Add extra lemon zest or a few drops of lemon extract.
3. Can I make this cake ahead of time?
Yes, it stays moist and delicious when made a day in advance.
4. What size pan should I use?
A 9×13-inch pan works best for even baking.