Mini Strawberry Sheet Cake with Vanilla Buttercream

Sometimes you need a dessert that feels special without the effort of a three-tier layer cake. This Mini Strawberry Sheet Cake with Vanilla Buttercream is the ultimate solution. It delivers a punch of fresh, fruity flavor packed into a perfectly sized 8×8-inch pan. The cake is incredibly moist thanks to the addition of real strawberry puree, and the fluffy vanilla buttercream provides a classic, creamy finish that balances the tartness of the berries. Whether you are hosting a small dinner party or just want a weekend treat for the family, this recipe is a guaranteed winner.

Recipe Information

• Prep Time: 20 minutes
• Cook Time: 25 minutes
• Total Time: 45 minutes
• Servings: 9 generous squares
• Difficulty: Easy

Nutrition values

• Calories: 295 kcal
• Protein: 3g
• Carbs: 44g

Why Make This Mini Strawberry Sheet Cake with Vanilla Buttercream

This recipe is perfect for those who love homemade desserts but hate food waste. Because it is a “mini” version, you won’t have a massive sheet cake sitting on your counter for a week. It uses real strawberries instead of artificial extracts, giving it an authentic, vibrant taste and a beautiful natural pink hue. Plus, the sheet cake format means no complicated stacking or crumb-coating—just bake, frost, and enjoy.

Ingredients

For the Strawberry Cake:

• 1 cup all-purpose flour
• 3/4 cup granulated sugar
• 1 teaspoon baking powder
• 1/4 teaspoon salt
• 1/2 cup unsalted butter, softened
• 1 large egg, room temperature
• 1/2 teaspoon vanilla extract
• 1/3 cup fresh strawberry puree (blended fresh berries)
• 2 tablespoons whole milk

For the Vanilla Buttercream:

• 1/2 cup unsalted butter, softened
• 2 cups powdered sugar
• 1 teaspoon vanilla extract
• 1-2 tablespoons heavy cream or milk
• Fresh strawberries for garnish (optional)

Directions

Step 1: Preparation

Preheat your oven to 350°F (175°C). Grease an 8×8-inch square baking pan with butter or non-stick spray, and line the bottom with parchment paper for easy removal.

Step 2: Mix the Dry Ingredients

In a medium mixing bowl, whisk together the all-purpose flour, baking powder, and salt. Set this mixture aside until you are ready to combine it with the wet ingredients.

Step 3: Cream the Butter and Sugar

In a large bowl, beat the softened butter and granulated sugar together using a hand mixer or stand mixer. Continue mixing for about 2-3 minutes until the texture is light and fluffy.

Step 4: Add Eggs and Flavorings

Add the egg and vanilla extract to the butter mixture. Beat on medium speed until fully incorporated. Scrape down the sides of the bowl to ensure everything is evenly mixed.

Step 5: Incorporate the Strawberry Puree

Mix in the fresh strawberry puree and the milk. The batter might look slightly curdled at this stage because of the fruit acid, but do not worry—it will smooth out once you add the dry ingredients.

Step 6: Combine and Bake

Gently fold the dry ingredients into the wet mixture using a spatula. Mix just until no streaks of flour remain. Pour the batter into the prepared pan and smooth the top. Bake for 22-25 minutes, or until a toothpick inserted into the center comes out clean. Let the cake cool completely in the pan.

Step 7: Whip the Buttercream

While the cake cools, prepare the frosting. Beat the softened butter until smooth. Gradually add the powdered sugar, one cup at a time, followed by the vanilla and heavy cream. Whip on high speed for 3 minutes until the frosting is light and airy.

Step 8: Frost and Serve

Once the cake is entirely cool, spread a thick layer of vanilla buttercream over the top. Use an offset spatula to create decorative swirls. Cut into 9 squares and top each piece with a fresh strawberry slice if desired.

Expert Tips for Perfect Mini Strawberry Sheet Cake with Vanilla Buttercream

• Use Room Temp Ingredients: Ensure your egg, butter, and milk are at room temperature to create a smooth, emulsified batter.
• Don’t Overmix: Once you add the flour, mix only until combined. Overmixing leads to a tough, dense cake.
• Reduce the Puree: For an even more intense strawberry flavor, simmer your strawberry puree in a small saucepan for 10 minutes to reduce the water content before adding it to the batter.
• Cool Completely: Never frost a warm cake. The buttercream will melt and slide right off.

Delicious Variations

• Strawberry Cream Cheese Frosting: Swap the buttercream for a tangy cream cheese frosting for a richer flavor profile.
• Lemon Strawberry: Add one tablespoon of fresh lemon zest to the cake batter to brighten the berry notes.
• Chocolate Chip: Fold 1/4 cup of mini chocolate chips into the batter for a “chocolate-covered strawberry” vibe.
• Berry Swirl: Use raspberry or blackberry puree instead of strawberry for a different berry experience.

Frequently Asked Questions

Can I use frozen strawberries?

Yes, you can use frozen strawberries for the puree. Thaw them completely and drain any excess liquid before blending to ensure the batter consistency remains correct.

How should I store this cake?

Store the cake in an airtight container at room temperature for up to 2 days. For longer storage, keep it in the refrigerator for up to 5 days, but let it sit out for 20 minutes before serving to soften the frosting.

Can I double the recipe for a larger crowd?

Absolutely! You can double all ingredients and bake the cake in a standard 9×13-inch pan. You will likely need to increase the baking time by 5-8 minutes.

Why is my cake not very pink?

Natural strawberry puree provides a very pale pink color. If you want a vibrant pink hue, you can add one small drop of pink or red food coloring to the batter.

Can I make the cake ahead of time?

Yes, you can bake the cake a day in advance. Wrap the unfrosted cake tightly in plastic wrap and store at room temperature. Frost it on the day you plan to serve it for the best results.

Conclusion

This Mini Strawberry Sheet Cake with Vanilla Buttercream proves that great things really do come in small packages. It is simple to assemble, bursting with natural fruit flavor, and just the right size for any occasion. The combination of the tender pink crumb and the velvety frosting is timeless. Give this recipe a try the next time you want a homemade treat that is as beautiful as it is delicious!

Print