(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
All-purpose flour
Baking powder
Baking soda
Salt
Granulated sugar
Eggs
Unsalted butter
Vegetable oil
Buttermilk
Vanilla extract
Fresh strawberries
Fresh blueberries
Fresh raspberries
Lemon zest
Powdered sugar for garnish (optional)
Directions
Preheat the oven to 350°F (175°C). Grease and line a sheet cake pan or a 9×13-inch baking pan with parchment paper.
Wash and dry all berries thoroughly. Slice the strawberries into smaller pieces and set aside.
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt.
In a large bowl, whisk the melted butter, oil, and sugar until smooth.
Add the eggs one at a time, whisking well after each addition.
Stir in the vanilla extract and lemon zest.
Add the dry ingredients in batches, alternating with the buttermilk. Mix gently until just combined.
Fold in half of the berries carefully to avoid crushing them.
Pour the batter into the prepared pan and spread evenly.
Scatter the remaining berries over the top of the batter.
Bake for 35–40 minutes, or until the top is golden and a toothpick inserted into the center comes out clean.
Allow the cake to cool completely before dusting with powdered sugar or serving with whipped cream.
Servings and timing
Servings: 12–15 slices
Prep Time: 20 minutes
Cook Time: 40 minutes
Total Time: 1 hour
Variations
Add blackberries for extra berry flavor
Use almond extract instead of vanilla for a nutty twist
Top with cream cheese frosting for a richer dessert
Add sliced peaches or cherries for a mixed fruit version
Sprinkle coarse sugar on top before baking for added crunch
Make it citrusy with extra lemon or orange zest
Use a gluten-free flour blend for a gluten-free option
Storage/Reheating
Store the cake covered at room temperature for up to 2 days or refrigerate for up to 5 days.
For freezing, wrap individual slices tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before serving.
To reheat, microwave slices for 10–15 seconds for a freshly baked texture.
FAQs
Can I use frozen berries instead of fresh?
Yes, but do not thaw them before adding to the batter to avoid excess moisture.
What size pan should I use?
A standard 9×13-inch pan works perfectly for this recipe.
How do I keep berries from sinking?
Toss the berries lightly in flour before folding them into the batter.
Can I make this cake ahead of time?
Yes, this cake stays moist and delicious for a day or two after baking.
Can I frost this cake?
Absolutely. Cream cheese frosting or whipped cream frosting pairs very well with the berries.
Is buttermilk necessary?
Buttermilk gives the cake tenderness, but you can substitute milk mixed with a little lemon juice or vinegar.
Can I make this into cupcakes?
Yes, simply divide the batter into cupcake liners and reduce the baking time.
What berries work best?
Strawberries, blueberries, raspberries, and blackberries are all excellent choices.
Can I reduce the sugar?
Yes, though reducing too much may slightly affect the cake texture.
How should I serve Summer Berry Sheet Cake?
Serve it plain, with whipped cream, vanilla ice cream, or extra fresh berries on top.
Conclusion
Summer Berry Sheet Cake is the perfect warm-weather dessert with its soft vanilla crumb and vibrant mix of fresh berries. Easy to prepare and beautiful to serve, this cake is ideal for sharing at gatherings or enjoying as a simple seasonal treat. Every slice is packed with fruity flavor and a light, moist texture that makes it a summer favorite.
Summer Berry Sheet Cake is a soft, moist vanilla cake loaded with fresh strawberries, blueberries, and raspberries. This easy crowd-pleasing dessert is perfect for summer parties, picnics, potlucks, and family gatherings.
Ingredients
2 1/2 cups all-purpose flour
2 teaspoons baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 1/4 cups granulated sugar
2 large eggs
1/2 cup unsalted butter, melted
1/4 cup vegetable oil
1 cup buttermilk
2 teaspoons vanilla extract
1 teaspoon lemon zest
1 cup fresh strawberries, chopped
3/4 cup fresh blueberries
3/4 cup fresh raspberries
1 tablespoon flour, for tossing berries (optional)
Powdered sugar, for garnish (optional)
Instructions
Preheat oven to 350°F (175°C). Grease and line a 9×13-inch baking pan with parchment paper.
Wash and dry the berries thoroughly. Chop strawberries into small pieces. Toss berries lightly with 1 tablespoon flour if desired.
In a medium bowl, whisk together flour, baking powder, baking soda, and salt.
In a large bowl, whisk melted butter, vegetable oil, and sugar until smooth.
Add eggs one at a time, whisking well after each addition.
Stir in vanilla extract and lemon zest.
Add the dry ingredients in batches, alternating with buttermilk. Mix gently until just combined.
Fold in half of the berries carefully.
Pour batter into the prepared pan and spread evenly.
Scatter the remaining berries over the top of the batter.
Bake for 35–40 minutes, or until a toothpick inserted into the center comes out clean.
Cool completely before dusting with powdered sugar or serving with whipped cream.
Notes
Do not overmix the batter to keep the cake soft and tender. Tossing berries in flour helps prevent them from sinking. Store leftovers covered in the refrigerator for best freshness.
