This Easy Flag Cake Recipe is a delightful dessert perfect for celebrating the 4th of July or any festive occasion. With its vibrant funfetti layers and stunning American flag design, this cake is not only visually appealing but also bursting with flavor. It’s an enjoyable baking project that can be made from scratch, making it a wonderful choice for family gatherings, picnics, or summer barbecues.
Why You’ll Love This Recipe
- Simple to Make: This recipe uses easy-to-find ingredients and straightforward steps, making baking accessible for everyone.
- Festive Appearance: The striking flag design using fresh berries adds a patriotic touch that will impress your guests.
- Delicious Funfetti Flavor: Each slice is infused with colorful sprinkles, making this cake a joyful treat for kids and adults alike.
- Versatile Serving Options: Besides being a cake, this recipe can easily be adapted into cupcakes or smaller round cakes, perfect for any event size.
- Tasty Frosting: The creamy buttercream frosting complements the cake’s flavor while allowing you to customize the sweetness level.
Tools and Preparation
To make your Easy Flag Cake, gather some essential tools to ensure a smooth baking experience.
Essential Tools and Equipment
- Stand mixer or hand mixer
- 9×13-inch baking pan
- Mixing bowls
- Whisk
- Spatula
Importance of Each Tool
- Stand mixer or hand mixer: These tools make it easy to achieve a smooth batter and creamy frosting without much effort.
- 9×13-inch baking pan: This specific size is ideal for even baking and creates the perfect shape for decorating like an American flag.
Ingredients
This easy Flag Cake is the perfect 4th of July dessert. It’s a funfetti cake from scratch and decorated like an American flag!
For the Cake
- 2 cups (248g) all-purpose flour
- 2 teaspoons baking powder
- ¾ teaspoon salt
- 1 cup (226g) unsalted butter (melted)
- 1 ½ cups (300g) granulated sugar
- 4 large eggs
- 1 teaspoon vanilla extract
- 1 cup (237ml) buttermilk
- 1 cup rainbow sprinkles
For the Frosting
- 1 cup (227g) unsalted butter (softened)
- 4 cups (452g) powdered sugar
- 1 teaspoon vanilla extract
- ½ teaspoon salt
- 2-5 tablespoons (30-75ml) heavy whipping cream
For Garnish
- 1 cup blueberries
- 2 cups strawberries or raspberries (or combination)

How to Make Easy Flag Cake Recipe
Step 1: Preheat the Oven
Preheat your oven to 350°F. Grease and flour a 9×13-inch baking pan to prevent sticking.
Step 2: Prepare the Dry Ingredients
In a medium bowl, whisk together:
1. All-purpose flour
2. Baking powder
3. Salt
Set this mixture aside for later use.
Step 3: Mix Butter and Sugar
In a large bowl, mix melted butter and granulated sugar on medium speed with your stand mixer or hand mixer until smooth. Add in eggs one at a time followed by vanilla extract.
Step 4: Combine Wet and Dry Ingredients
Add the buttermilk alternately with the dry ingredient mixture:
1. Start with buttermilk.
2. Mix in some dry ingredients.
3. Repeat until everything is combined.
4. Gently fold in rainbow sprinkles.
Step 5: Bake the Cake
Pour the batter into your prepared pan. Bake in the preheated oven for about 30-40 minutes or until a toothpick inserted comes out clean with just a few crumbs attached. Allow it to cool completely before frosting.
Step 6: Make the Frosting
In another bowl, beat softened butter until creamy using your mixer. Gradually add powdered sugar one cup at a time until you achieve a crumbly texture:
1. Mix in vanilla extract and salt.
2. Add heavy cream gradually until you reach your desired frosting consistency.
3. Stir in additional sprinkles if desired.
Step 7: Decorate the Cake
Spread frosting evenly over the cooled cake. Arrange blueberries and strawberries on top to create an American flag design.
Step 8: Store Your Cake
Store any leftovers loosely covered at room temperature for up to two days.
This Easy Flag Cake can also be adapted into cupcakes or two smaller round cakes! Enjoy sharing this beautiful dessert at your next gathering!
How to Serve Easy Flag Cake Recipe
Serving the Easy Flag Cake is a delightful experience, especially during festive occasions like the 4th of July. The vibrant colors and flavors make it a showstopper at any gathering.
Individual Slices
- Serve each slice with a dollop of whipped cream for added richness.
- Top slices with extra berries to enhance the patriotic theme.
Parfaits
- Layer cake pieces with whipped cream and berries in a glass for a fun dessert parfait.
- This presentation adds visual appeal and makes it easy to serve.
Cupcake Version
- Make cupcakes using the same batter and frosting for individual servings.
- Decorate each cupcake with a mini American flag for extra flair.
Dessert Bar
- Create a dessert bar with slices of Easy Flag Cake alongside other treats.
- Guests can choose their favorites, making it interactive and fun.
How to Perfect Easy Flag Cake Recipe
To ensure your Easy Flag Cake turns out perfectly every time, consider these helpful tips.
- Use room temperature ingredients: This helps create a smooth batter and leads to even baking.
- Don’t overmix the batter: Mix just until combined for a light and fluffy cake texture.
- Check doneness properly: Use a toothpick to test the center; it should come out clean or with a few crumbs.
- Cool completely before frosting: This prevents the frosting from melting and sliding off the cake.
- Chill your frosting if needed: If it’s too soft, refrigerate for about 10 minutes before spreading on the cake.
- Experiment with toppings: Feel free to customize your fruit toppings based on seasonal availability or personal preference.

Best Side Dishes for Easy Flag Cake Recipe
Pairing side dishes with your Easy Flag Cake can elevate your meal. Here are some great options to consider:
- Grilled Corn on the Cob: Sweet corn brushed with butter is a classic summer side that complements the cake perfectly.
- Potato Salad: A creamy potato salad adds heartiness to your meal, balancing out the sweetness of the cake.
- Caprese Salad Skewers: Fresh mozzarella, basil, and tomatoes make for a refreshing dish that’s easy to eat.
- Coleslaw: Crunchy coleslaw offers a nice contrast in texture while being light and flavorful.
- Deviled Eggs: These bite-sized appetizers are always a hit at gatherings, providing savory goodness alongside sweet desserts.
- Fruit Salad: A mix of seasonal fruits keeps things fresh and aligns well with the fruity elements of the cake.
Common Mistakes to Avoid
When making this Easy Flag Cake Recipe, it’s important to avoid common pitfalls that can affect the outcome.
- Skipping the flour measurement: Measuring flour incorrectly can lead to a dense or dry cake. Always spoon flour into your measuring cup and level it off for accuracy.
- Not using room temperature ingredients: Cold butter or eggs can prevent the batter from mixing properly, resulting in a less fluffy cake. Allow your ingredients to come to room temperature before starting.
- Overmixing the batter: Mixing too much after adding the flour can make the cake tough. Mix just until combined and no dry spots remain for a light texture.
- Ignoring oven temperature: Oven temperatures can vary. Use an oven thermometer to ensure it’s accurate, and adjust baking time as necessary.
- Frosting while warm: Frosting a warm cake can cause the frosting to melt and slide off. Ensure your cake is completely cool before applying frosting.
Refrigerator Storage
- Store leftover cake in an airtight container for up to 2 days.
- Keep the cake loosely covered with plastic wrap if you don’t have a container.
Freezing Easy Flag Cake Recipe
- Wrap individual slices in plastic wrap and then aluminum foil for freezing.
- The cake can be frozen for up to 3 months; just thaw in the refrigerator overnight before serving.
Reheating Easy Flag Cake Recipe
- Oven: Preheat to 350°F, cover with foil, and heat for about 10-15 minutes until warmed through.
- Microwave: Heat individual slices on medium power for 10-15 seconds until warm. Be careful not to overheat.
- Stovetop: Place slices in a skillet over low heat, covering with a lid, for about 5 minutes until warmed.

Frequently Asked Questions
Can I use gluten-free flour in this Easy Flag Cake Recipe?
Yes, you can substitute gluten-free all-purpose flour in this recipe. Make sure it has xanthan gum included or add it separately as needed.
How do I make this Easy Flag Cake Recipe dairy-free?
To make the cake dairy-free, use plant-based butter and substitute buttermilk with almond milk mixed with vinegar or lemon juice for similar acidity.
Can I customize the fruit toppings on my flag cake?
Absolutely! You can use other fruits like blackberries or kiwi based on your preference or seasonal availability.
How can I make this Easy Flag Cake Recipe more festive?
Consider adding edible glitter or sprinkles around the edges of the frosting for extra sparkle! You could also serve it alongside themed cupcakes.
What is the best way to serve this flag cake?
Serve chilled or at room temperature, sliced into squares. Garnish with extra berries on each plate for visual appeal!
Final Thoughts
This Easy Flag Cake Recipe is not only visually stunning but also deliciously fun! It’s perfect for any patriotic celebration, but its customizable nature means you can enjoy it year-round with different toppings or flavors. Don’t hesitate to try it out and make it your own!
Easy Flag Cake Recipe
Indulge in this Easy Flag Cake Recipe, a festive and delightful dessert that’s perfect for celebrating the 4th of July or any special occasion. This vibrant funfetti cake layers, adorned with fresh berries to mimic the American flag, not only looks stunning but is also bursting with flavor. Ideal for family gatherings, picnics, or summer barbecues, this recipe is straightforward enough for bakers of all skill levels. With easy-to-find ingredients and simple steps, you’ll enjoy a fun baking project that will impress your guests and leave them craving more.
- Prep Time: 20 minutes
- Cook Time: 35 minutes
- Total Time: 55 minutes
- Yield: Serves approximately 12 slices 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 2 cups all-purpose flour
- 2 teaspoons baking powder
- ¾ teaspoon salt
- 1 cup unsalted butter (melted)
- 1 ½ cups granulated sugar
- 4 large eggs
- 1 teaspoon vanilla extract
- 1 cup buttermilk
- 1 cup rainbow sprinkles
- 1 cup unsalted butter (softened)
- 4 cups powdered sugar
- ½ teaspoon salt
- 2–5 tablespoons heavy whipping cream
- 1 cup blueberries
- 2 cups strawberries or raspberries (or combination)
Instructions
- Preheat your oven to 350°F and grease a 9×13-inch baking pan.
- In a bowl, whisk together flour, baking powder, and salt.
- In a separate bowl, mix melted butter and sugar until smooth; add eggs one at a time followed by vanilla extract.
- Alternate adding buttermilk and dry ingredients until combined; gently fold in sprinkles.
- Pour batter into the prepared pan and bake for 30-40 minutes or until a toothpick comes out clean.
- Allow the cake to cool completely before frosting with a creamy buttercream made from softened butter, powdered sugar, vanilla extract, salt, and heavy cream.
Nutrition
- Serving Size: 1 serving
- Calories: 310
- Sugar: 25g
- Sodium: 180mg
- Fat: 14g
- Saturated Fat: 8g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 42g
- Fiber: 0g
- Protein: 3g
- Cholesterol: 65mg