Hey there! Pull up a chair and let’s talk cake. There’s just something special about a simple, moist cake, right? For me, it brings back memories of my grandmother’s kitchen. She always had a way of making even the simplest things feel like a celebration. That’s the feeling I get when I make this Classic Buttermilk Flag Cake. It’s not fancy, but it’s full of flavor and just feels like home. Here at 911Recipes, we’re all about making delicious food accessible to everyone, no matter how busy life gets. This classic buttermilk flag cake recipe is perfect for holidays, potlucks, or just because you want a little something sweet. Trust me, it’s super easy, and the results are always a hit!

Why You’ll Love This Classic Buttermilk Flag Cake
Let me tell you why this cake is a winner in my book. It’s become a go-to for me, and I think you’ll see why too. This Classic Buttermilk Flag Cake is just so reliably good.
- It’s incredibly easy! Seriously, even if you’re new to baking, you can totally nail this.
- The buttermilk makes it so wonderfully moist and tender. No dry cake here!
- It’s absolutely perfect for all sorts of occasions, especially those with a patriotic flair.
- You can get really creative with the decorating, making it your own.
- And that classic flavor? It’s pure comfort in every bite.

Gather Your Ingredients for Your Classic Buttermilk Flag Cake
Okay, let’s get everything ready! Having all your ingredients measured out and prepped before you start is key to baking success. It just makes everything go smoothly.
- 1 cup (2 sticks) unsalted butter, softened
- 2 cups granulated sugar
- 4 large eggs
- 1 teaspoon vanilla extract
- 3 cups all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup buttermilk
Ingredient Notes and Simple Substitutions
A little tip that makes a big difference: make sure your cold ingredients, like butter, eggs, and buttermilk, are at room temperature. It helps everything mix together better for a smoother batter. If you don’t have buttermilk on hand, don’t worry! You can easily swap it out. Just mix a tablespoon of vinegar or lemon juice into a cup of regular milk and let it sit for about 5-10 minutes until it looks a little curdled. Sour cream or even plain yogurt thinned with a little milk can work too in a pinch.
Essential Equipment for Making Classic Buttermilk Flag Cake
Before we dive into mixing up this lovely batter, let’s make sure you have the right tools ready. Having your equipment lined up makes the baking process much simpler.
- You’ll need a sturdy 9×13 inch baking pan.
- Grab a couple of large mixing bowls.
- A whisk is handy for combining the dry ingredients.
- An electric mixer, either hand or stand, makes creaming the butter and sugar a breeze.
- And don’t forget a wire rack for cooling the cake properly.
Simple Steps to Bake Your Classic Buttermilk Flag Cake
Alright, it’s time to put those ingredients to work! Baking this Classic Buttermilk Flag Cake is really straightforward. Just follow these steps, and you’ll have a beautiful cake in no time. I always find baking to be a bit like a calm meditation, following the steps and watching it all come together.
- First things first, preheat your oven to 350°F (175°C). It’s important to start with a properly heated oven.
- While the oven heats, get your 9×13 inch baking pan ready. Grease it well, then lightly flour it. This helps the cake come out cleanly.
- In a big bowl, use your electric mixer to cream together that softened butter and granulated sugar. Beat it until it looks light and fluffy. This step adds air and makes the cake tender.
- Now, add your eggs one at a time, beating well after each addition. Stir in the vanilla extract too. It smells so good at this point!
- In a separate medium bowl, whisk together the flour, baking powder, baking soda, and salt. This makes sure everything is evenly distributed.
- Here’s where it comes together. Add some of the dry ingredients to the wet ingredients, then some buttermilk. Keep alternating, starting and ending with the dry ingredients. Mix just until everything is combined. Be careful not to overmix! Overmixing can make your cake tough.
- Pour the batter into your prepared pan and spread it out evenly.
- Bake for about 30-35 minutes. You’ll know it’s done when a wooden skewer inserted into the center comes out clean.
- Let the cake cool in the pan for about 10 minutes before turning it out onto a wire rack to cool completely. Patience is key here!
Pro Tips for a Perfect Classic Buttermilk Flag Cake
A few little tricks I’ve picked up along the way for this Classic Buttermilk Flag Cake. Always make sure your oven is fully preheated before putting the cake in. That helps it bake evenly. When checking for doneness, the skewer test is your best friend! If it comes out clean, it’s ready. Also, remember that room temperature ingredients really do make a difference in the texture of your cake. And let the cake cool completely before you even think about frosting it!
Decorating and Serving Your Classic Buttermilk Flag Cake
Now for the fun part – making your Classic Buttermilk Flag Cake look as good as it tastes! This cake is practically begging to be decorated, especially with a patriotic theme. Once it’s completely cool, you can frost it with your favorite vanilla or cream cheese frosting. Then comes the magic! Use fresh strawberries or raspberries for the red stripes and blueberries for the stars. It’s simple, festive, and always impressive.

When it’s time to serve, a slice of this moist cake is wonderful on its own. But if you want to go the extra mile, add a dollop of fresh whipped cream or a scoop of vanilla ice cream. A few extra fresh berries on the side never hurt either! It’s perfect for a backyard BBQ or a holiday gathering.
Frequently Asked Questions About Classic Buttermilk Flag Cake
I get asked a few questions pretty often about this Classic Buttermilk Flag Cake. Here are some of the common ones, with my best answers to help you out!
Can I use a different size pan for this recipe?
This recipe is written for a 9×13 inch pan. If you use a different size, you’ll need to adjust the baking time. A smaller pan might need a little longer, and a larger one would bake faster. Just keep an eye on it and use the skewer test!
How should I store leftover Classic Buttermilk Flag Cake?
If you have any leftovers (which is a big IF!), store the cake in an airtight container at room temperature for a couple of days. If it’s frosted with a cream cheese frosting, it’s best to keep it in the refrigerator.
Can I make this cake ahead of time?
Yes, absolutely! You can bake the cake a day or two in advance and store it wrapped tightly at room temperature. I usually wait to frost and decorate it until closer to when I plan to serve it.
Estimated Nutritional Information
Just so you have an idea, here’s an estimated look at the nutritional breakdown for a serving of this Classic Buttermilk Flag Cake. Keep in mind these are estimates and can change depending on the specific brands and ingredients you use.
- Serving Size: 1 slice
- Calories: 400
- Fat: 18g
- Protein: 5g
- Carbohydrates: 55g
- Sugar: 45g
- Fiber: 1g
- Sodium: 200mg
Amazing Classic Buttermilk Flag Cake: 1 Perfect Slice
- Total Time: 45-50 minutes
- Yield: 12 servings
- Diet: Vegetarian
Description
A simple and delicious buttermilk cake perfect for celebrating with a patriotic theme. This recipe is easy to follow and delivers a classic, moist cake.
Ingredients
- 1 cup (2 sticks) unsalted butter, softened
- 2 cups granulated sugar
- 4 large eggs
- 1 teaspoon vanilla extract
- 3 cups all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup buttermilk
Instructions
- Preheat oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan.
- In a large bowl, cream together the softened butter and granulated sugar until light and fluffy.
- Beat in the eggs one at a time, then stir in the vanilla extract.
- In a separate medium bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt.
- Alternately add the dry ingredients and the buttermilk to the wet ingredients, beginning and ending with the dry ingredients. Mix until just combined. Do not overmix.
- Pour the batter into the prepared baking pan and spread evenly.
- Bake for 30-35 minutes, or until a wooden skewer inserted into the center comes out clean.
- Let the cake cool in the pan for 10 minutes before inverting it onto a wire rack to cool completely.
Notes
- Ensure all ingredients are at room temperature for best results.
- Do not overmix the batter; this can result in a tough cake.
- Adjust baking time slightly depending on your oven.
- Prep Time: 15 minutes
- Cook Time: 30-35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 400
- Sugar: 45g
- Sodium: 200mg
- Fat: 18g
- Saturated Fat: 11g
- Unsaturated Fat: 6g
- Trans Fat: 0.5g
- Carbohydrates: 55g
- Fiber: 1g
- Protein: 5g
- Cholesterol: 90mg
