Flag Cake
Flag Cake is a delightful dessert that takes center stage, especially around patriotic holidays or family gatherings. This cake captures the essence of festive celebration with its vibrant colors and creamy layers. Imagine cutting into a soft, moist cake, only to reveal a stunning array of red, white, and blue. Each slice not only tantalizes your taste buds but also brings smiles and joy to everyone gathered around.
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I first discovered this cake at a friend’s summer barbecue. The sight alone—a beautiful combination of whipped cream, berries, and fluffy cake—instantly drew me in. It felt like more than just dessert; it was a fun tribute to the occasion. What I love most about this Flag Cake is its simplicity and versatility. It’s budget-friendly, easily feeds a crowd, and is perfect for various celebrations. I can’t wait for you to try this recipe and enjoy this sweet slice of Americana!
Why You’ll Love This Recipe
- Simple & Quick: It takes less than an hour to prepare and bake.
- Irresistible Flavor: The combo of creamy frosting and fresh berries is just divine.
- Eye-Catching Appeal: The vibrant colors make it a show-stopper for any occasion.
- Flexible Serving: Perfect for barbecues, parties, or even a delightful family dessert.
- Diet-Friendly Options: Easily adaptable for gluten-free diets with simple swaps.
Ingredients You’ll Need
- 3 large egg whites: Beaten for fluffy texture; you can use egg substitutes if needed.
- 2 large eggs: Essential for binding and moisture; room temperature eggs work best.
- 1 cup buttermilk: Adds richness and tang; regular milk plus vinegar can substitute.
- 3 tablespoons oil: For moisture and softness; vegetable or canola oil is recommended.
- 2 teaspoons vanilla extract: Enhances flavor; pure extract is best for deeper taste.
- 1 1/2 cups sugar: Sweetens the cake; consider using a sugar alternative for fewer calories.
- 2 1/4 cups flour: Standard all-purpose flour gives structure; gluten-free flour mix is a good substitute.
- 2 teaspoons baking powder: Provides the cake’s leavening; ensure it’s fresh for proper rise.
- 3/4 teaspoon salt: Balances sweetness; omit for a low-sodium option.
- 1 cup butter (cut into cubes): Rich flavor and texture; soften before use for ease.
- 2 cups heavy cream: Whipped for the frosting; light cream can be used but may not hold as well.
- (2) 8-ounce pkgs. Cream Cheese (softened): Forms the base of the creamy frosting; low-fat options available.
- 2 1/2 cups powdered sugar: Sweetens and thickens the frosting; can be made with a sugar alternative.
- 1 teaspoon vanilla bean paste or extract: Adds a delicious depth; pure vanilla extract works too.
- Raspberries: Sweet-tart bursts for decoration; substitute with cherries or strawberries if desired.
- Strawberries: Added for red stripes; sliced strawberries create beautiful layers.
- Blueberries or Blackberries (or both): Used for the stars; either gives a delicious touch.
- Cherries (optional): A fun addition for extra sweetness; they can also be used for decoration.
How to Make Flag Cake
- Preheat the Oven: Start by preheating your oven to 350°F. It’s essential for achieving that perfect rise.
- Mix the Dry Ingredients: In a stand mixer or with a hand mixer, stir together 2 1/4 cups flour, 1 1/2 cups sugar, 2 teaspoons baking powder, and 3/4 teaspoon salt.
- Incorporate the Butter: Add 1 cup of cubed butter into the flour mixture, beating until it resembles coarse crumbs.
- Combine Wet Ingredients: In a separate small bowl, whisk together 2 large eggs, 1 cup buttermilk, 3 tablespoons oil, and 2 teaspoons vanilla extract. Whip the egg whites until soft peaks form for added volume.
- Mix Together: Add half of the egg-milk mixture to the butter-flour mix and whip until light and fluffy. Then mix in the remaining milk mixture until just combined.
- Prepare the Pan: Lightly spray a 9 x 13 cake pan with non-stick cooking spray. Pour the batter into the pan, smoothing the top evenly.
- Bake the Cake: Bake in the preheated oven for 28-32 minutes. It’s done when a toothpick or cake tester comes out clean. Let it cool in the pan for a few minutes before inverting it onto a serving platter.
- Make the Frosting: In a bowl, whip 2 cups of heavy cream until stiff peaks form. In another mixing bowl, beat the 2 packages of softened cream cheese until smooth. Add 2 1/2 cups of powdered sugar and 1 teaspoon vanilla bean paste, whipping until fluffy.
- Combine the Mixtures: Gently fold the whipped cream into the cream cheese mixture, combining well.
- Frost the Cake: Once the cake is completely cool, generously spread the frosting over the top and sides (if visible).
- Prepare the Decoration: Fill the upper left section of the cake with tightly packed blueberries or blackberries, representing the “stars” field. Use raspberries or sliced strawberries to create red stripes, alternating with frosting swirls made using a large star tip.
- Pipe White Stripes: For white stripes, pipe long swirls across the cake with your frosting, holding the star tip at a 45° angle and making soft zigzag motions.
- Chill Before Serving: Cover the cake and keep it in the refrigerator until you’re ready to serve. This will help the frosting set and make for easier slicing.
Storing & Reheating
To keep your Flag Cake fresh, store it in an airtight container in the refrigerator. It should last for up to 5 days. If you prefer room temperature, cover it loosely for a day but remember that the frosting may soften. For long-term storage, this cake can also be frozen. Slice it into pieces, wrap tightly in plastic wrap, and place in a freezer-safe container for up to 3 months. When you want to enjoy it, simply thaw it in the fridge overnight or at room temperature, noting that while the flavor remains delightful, the frosting may lose some fluffiness over time.
Chef’s Helpful Tips
- Avoid overmixing the batter after adding the egg-milk mixture to keep the cake light and fluffy.
- Make sure your butter is softened but not melted for the perfect crumb texture.
- Check your baking powder for freshness—an expired leavening agent can result in a flat cake.
- Consider making the cake base a day ahead; letting it chill improves the flavors.
- For a fun twist, try adding a bit of lemon zest to the frosting for a zesty kick.
Each layer and element beautifully complements the others, making Flag Cake not only a treat for the eyes but also a delight for all palates. Experiment with variations, swap out berries, try different cake flavors, or even play with the frosting to customize it to your liking!

Recipe FAQs
Can I make Flag Cake ahead of time?
Absolutely! You can bake the cake and whip up the frosting a day in advance. Just frost it the day you plan to serve it to keep the texture fresh.
What if I don’t have buttermilk?
No problem! Make your own buttermilk by mixing 1 cup of regular milk with 1 tablespoon of white vinegar or lemon juice. Let it sit for about 5-10 minutes to thicken.
Can I use different fruits for decoration?
Definitely! Feel free to get creative with berries. Peaches, kiwi, or even edible flowers can give a unique twist to your cake.
How should I cut and serve the cake?
Use a sharp, wet knife to cut through the fluffy frosting and soft cake. This will help prevent sticking and ensure clean, neat slices for serving.
With its festive looks and delightful flavors, the Flag Cake is sure to become a cherished recipe in your kitchen. Enjoy the compliments as you share a slice or two!
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Flag Cake
- Prep Time: 30 minutes
- Cook Time: 30 minutes
- Total Time: 1 hour
- Yield: 16 servings 1x
- Category: Cakes
- Method: Baking
- Cuisine: American
Description
This Flag Cake features a fluffy texture and is decorated with vibrant berries, making it a visually stunning and delicious treat for any occasion. Perfect for celebrations, it combines moist cake with a rich cream cheese frosting and fresh fruit toppings.
Ingredients
- 3 large egg whites
- 2 large eggs
- 1 cup buttermilk
- 3 tablespoons oil
- 2 teaspoons vanilla extract
- 1 1/2 cups sugar
- 2 1/4 cups flour
- 2 teaspoons baking powder
- 3/4 teaspoon salt
- 1 cup butter (cut into cubes)
- 2 cups heavy cream
- 2 (8-ounce) pkgs. Cream Cheese (softened)
- 2 1/2 cups powdered sugar
- 1 teaspoon vanilla bean paste or extract
- Raspberries
- Strawberries
- Blueberries or Blackberries (or both)
- Cherries (optional)
Instructions
- Preheat the oven to 350 degrees Fahrenheit. In a stand mixer or using a hand mixer, combine the flour, sugar, baking powder, and salt.
- Gradually add the butter one cube at a time until the mixture resembles coarse crumbs.
- In a separate bowl, whisk together the eggs, buttermilk, oil, and vanilla extract. Beat the egg whites in another bowl until soft peaks form.
- Add half of the egg-milk mixture to the flour mixture and beat until light and fluffy. Then mix in the remaining egg-milk mixture until just combined.
- Spray a 9 x 13 inch cake pan with non-stick cooking spray and pour the batter into the pan. Bake for 28-32 minutes or until a toothpick comes out clean.
- Let the cake cool before removing it from the pan. To invert onto a platter, run a knife along the edges to loosen it.
Notes
Make sure to beat the egg whites until soft peaks form for extra lift in the cake.
Let the cake cool completely before frosting for best results.
Feel free to substitute with your favorite mixed berries to decorate.
Nutrition
- Serving Size: 1 slice
- Calories: 380
- Sugar: 25g
- Sodium: 210mg
- Fat: 22g
- Saturated Fat: 13g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 43g
- Fiber: 1g
- Protein: 5g
- Cholesterol: 90mg
