When summer rolls around, nothing quite captures the essence of the season like **Bea’s Blueberry Sheet Cake**. This delightful dessert is bursting with fresh blueberry flavor, making it a perfect choice for brunches, picnics, or gatherings. The beauty of this sheet cake lies not only in its vibrant color but also in its incredible moisture and softness, which comes from baking with fresh blueberries. Whether you’re a seasoned baker or just starting, this easy blueberry dessert is sure to impress your family and friends. With a light vanilla cake base and a homemade blueberry frosting, it’s a celebration of summer’s best fruits, bringing together both flavor and joy in every slice.

Ingredients

To create Bea’s Blueberry Sheet Cake, gather the following ingredients: You can learn more about this topic.

• For the Cake:
• 2 cups all-purpose flour
• 1 ½ cups granulated sugar
• ½ cup unsalted butter, softened
• 1 cup whole milk
• 3 large eggs
• 2 teaspoons baking powder
• 1 teaspoon vanilla extract
• ½ teaspoon salt
• 1 ½ cups fresh blueberries, rinsed and patted dry
• For the Homemade Blueberry Frosting:
• 1 cup unsalted butter, softened
• 4 cups powdered sugar
• ¼ cup fresh blueberries
• 2 tablespoons milk (or more for desired consistency)
• 1 teaspoon vanilla extract

For optimal results, use fresh blueberries when they’re in season. If fresh blueberries are unavailable, frozen ones can be used, but make sure to thaw and drain them well to avoid excess moisture. Check out our related guide for more tips.

Steps / Instructions

1. Preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch sheet cake pan.
2. In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy, about 3-4 minutes.
3. Add the eggs one at a time, mixing well after each addition. Then stir in the vanilla extract.
4. In a separate bowl, combine the flour, baking powder, and salt. Gradually add this dry mixture to the wet ingredients, alternating with the milk. Begin and end with the flour mixture, mixing until just combined. Do not overmix to keep the cake moist.
5. Gently fold in the fresh blueberries using a spatula, being careful not to break them apart.
6. Pour the batter into the prepared sheet pan and spread it evenly.
7. Bake for 30-35 minutes or until a toothpick inserted in the center comes out clean. The top should be lightly golden brown.
8. Once baked, allow the cake to cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely.
9. While the cake is cooling, prepare the homemade blueberry frosting. In a medium bowl, beat the softened butter until creamy. Gradually mix in the powdered sugar until combined.
10. Add the fresh blueberries, milk, and vanilla extract. Mix until smooth and fluffy. Adjust the milk as needed to reach your desired frosting consistency.
11. Once the cake is completely cool, spread the blueberry frosting evenly over the top. Decorate with additional fresh blueberries if desired.

Tips & Tricks

To ensure you achieve the best results with Bea’s Blueberry Sheet Cake, consider the following tips:

• Make sure your butter is at room temperature for easier creaming with sugar.
• Do not overmix your batter once you add the flour, as this can lead to a denser cake.
• If you want to enhance the blueberry flavor, consider adding a teaspoon of lemon zest to the batter or frosting.
• For storage, keep the cake covered at room temperature for up to three days, or refrigerate for up to a week. Store any leftover frosting separately in the fridge.
• This cake can also be made a day in advance, which allows the flavors to meld beautifully.

Variations

Feel free to customize Bea’s Blueberry Sheet Cake according to your preferences:

• For a gluten-free option, substitute the all-purpose flour with a gluten-free blend.
• To make it vegan, use plant-based butter, non-dairy milk, and substitute eggs with flax eggs or applesauce.
• For added texture, consider folding in some chopped nuts, such as walnuts or pecans, with the blueberries.
• Experiment with different berry combinations by adding raspberries or blackberries for a mixed berry sheet cake.

Serving Suggestions

Bea’s Blueberry Sheet Cake is perfect for gatherings or brunches. Serve it warm or at room temperature. Pair it with whipped cream for a more indulgent treat or enjoy it with a scoop of vanilla ice cream. A fresh fruit salad or a refreshing iced tea can complement the flavors beautifully. To elevate the presentation, dust the cake with powdered sugar or garnish with mint leaves for an added touch of freshness.

Bea’s Blueberry Sheet Cake

★★★★★ 5 from 1 vote

Course: Dessert Cuisine: American Difficulty: Easy

🍽️

Servings

12

⏱️

Prep Time

15 min

🍳

Cook Time

35 min

🔥

Calories

—

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This delightful dessert is bursting with fresh blueberry flavor, making it a perfect choice for brunches, picnics, or gatherings. The beauty of this sheet cake lies not only in its vibrant color but also in its incredible moisture and softness, which comes from baking with fresh blueberries.

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Ingredients

• 2 cups all-purpose flour
• 1 ½ cups granulated sugar
• ½ cup unsalted butter, softened
• 1 cup whole milk
• 3 large eggs
• 2 teaspoons baking powder
• 1 teaspoon vanilla extract
• ½ teaspoon salt
• 1 ½ cups fresh blueberries, rinsed and patted dry
• 1 cup unsalted butter, softened (for frosting)
• 4 cups powdered sugar
• ¼ cup fresh blueberries (for frosting)
• 2 tablespoons milk (or more for desired consistency)
• 1 teaspoon vanilla extract (for frosting)

Directions

1.

Preheat your oven to 350°F (175°C). Grease and flour a 9x13 inch sheet cake pan.

2.

In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy, about 3-4 minutes.

3.

Add the eggs one at a time, mixing well after each addition. Then stir in the vanilla extract.

4.

In a separate bowl, combine the flour, baking powder, and salt. Gradually add this dry mixture to the wet ingredients, alternating with the milk. Begin and end with the flour mixture, mixing until just combined. Do not overmix to keep the cake moist.

5.

Gently fold in the fresh blueberries using a spatula, being careful not to break them apart.

6.

Pour the batter into the prepared sheet pan and spread it evenly.

7.

Bake for 30-35 minutes or until a toothpick inserted in the center comes out clean. The top should be lightly golden brown.

8.

Once baked, allow the cake to cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely.

9.

While the cake is cooling, prepare the homemade blueberry frosting. In a medium bowl, beat the softened butter until creamy. Gradually mix in the powdered sugar until combined.

10.

Add the fresh blueberries, milk, and vanilla extract. Mix until smooth and fluffy. Adjust the milk as needed to reach your desired frosting consistency.

11.

Once the cake is completely cool, spread the blueberry frosting evenly over the top. Decorate with additional fresh blueberries if desired.