Mile High Marble Pound Cake

If you can't decide between vanilla and chocolate pound cake, why choose? This Mile High Marble Pound Cake gives you the best of both worlds with rich vanilla pound cake and chocolate batter beautifully swirled together.

And because this is a Mile High Pound Cake, we're not making a little cake over here! This recipe is baked in an 18-cup Bundt pan to create an extra-tall pound cake that's perfect when you need a dessert that can feed a crowd. (I baked the cake pictured in my 16-cup Nordic Ware Anniversary Bundt Pan because I love the shape of this pan. If using a 16-cup pan, do not add all of the batter to the pan. You will have approximately 2 cups of batter remaining)

Every slice is a little different. Some have more vanilla, some have more chocolate, and others have that perfect combination of both.

If you love my regular Marble Pound Cake but need something bigger and even more impressive for holidays, celebrations, family gatherings, or Sunday dinner, this Mile High version is for you.

What Is a Mile High Pound Cake?

Mile High Pound Cakes are larger versions of traditional pound cakes designed to be baked in an 18-cup Bundt pan. My formula for a standard Mile High Pound Cake includes the following:

🤎 4 cups of flour
🤎 4 cups of sugar
🤎 4 sticks of butter (2 cups)
🤎 10 eggs

These cakes use more batter than a standard pound cake, which gives them their signature tall appearance. They're especially great when you're baking for a large family, holiday gathering, church function, party, or any occasion where a regular Bundt cake just isn't enough.

If you don't have an 18-cup pan, bake my regular Marble Pound Cake instead.

What Is Marble Pound Cake?

Marble pound cake combines two classic flavors-vanilla and chocolate-in one cake.

The vanilla pound cake batter serves as the base. A portion of that batter is then flavored with cocoa to create the chocolate portion.

The two batters are added to the pan and gently swirled together in an S-pattern, creating the beautiful marble effect you see when the cake is sliced.

You want distinct ribbons of chocolate and vanilla throughout the cake rather than completely blending the two batters.

Recommended tools and equipment:

• Mile High Bundt Pan (An 18-cup bundt pan is needed for this recipe.)
• Stand Mixer or Hand Mixer
• Silicone Spatula
• Oven Thermometer
• Cake Keeper
• Measuring Cups and Measuring Spoons
• Dutch-Processed Cocoa Powder

Why You'll Love This Mile High Marble Pound Cake

There is so much to love about this cake!

Chocolate and vanilla in one cake. You don't have to choose between the two flavors.

It's made for a crowd. The larger Mile High recipe makes plenty of cake for holidays, parties, and family gatherings.

Every slice is unique. The chocolate and vanilla batters create a beautiful marble pattern throughout the cake.

It's a showstopper. There's just something about putting one of these extra-tall pound cakes on the table!

It's made from scratch. This homemade pound cake has the rich flavor and texture you expect from a classic pound cake.

Why Use Dutch-Processed Cocoa Powder?

For this Mile High Marble Pound Cake, I prefer Dutch-processed cocoa powder over regular natural cocoa powder for several reasons:

• Richer chocolate flavor: Dutch-processed cocoa gives the chocolate portion of the cake a deeper chocolate flavor.
• Smoother taste: Because Dutch-processed cocoa has been treated to reduce its natural acidity, it has a smoother, more mellow flavor than natural cocoa powder.
• Deeper color: Dutch-processed cocoa creates a darker, richer chocolate color, which makes the marble swirl stand out beautifully when the cake is sliced.
• Better balance with the vanilla batter: Since only a portion of the pound cake batter is flavored with chocolate, Dutch-processed cocoa provides enough richness for the chocolate swirl to stand out without overpowering the buttery vanilla cake.

You can use regular unsweetened cocoa powder if that's what you have on hand, but Dutch-processed cocoa is my preferred choice for this recipe because it gives the marble swirl the smooth, rich chocolate flavor and deep color I'm looking for. I also prefer the Black Dutch-processed cocoa version due to its brownie/Oreo like flavor, but the choice is yours.

Room-Temperature Ingredients Matter

Before you begin, allow your refrigerated ingredients to come to room temperature.

Room-temperature butter creams better with sugar, while room-temperature eggs and buttermilk incorporate more smoothly into the batter.

This helps create a more uniform batter and can reduce the chance of the mixture looking curdled or separated during mixing.

Just remember that room temperature doesn't mean super soft butter. Your butter should be soft enough to indent when pressed but should still hold its shape.

How to Get a Beautiful Marble Swirl

The swirl is what makes marble pound cake so pretty, but more swirling doesn't necessarily mean a better marble.

If you mix the batters too much, the chocolate and vanilla can begin blending together instead of creating separate ribbons.

Alternate the batters throughout the pan and then make just a few gentle passes through them.

And don't worry about making the pattern perfect. That's part of the beauty of marble cake. You won't know exactly what the inside looks like until you cut the first slice!

Tips for the Best Mile High Marble Pound Cake

Make sure your ingredients are at room temperature before mixing.

Cream the butter and sugar thoroughly. Don't rush this part of the recipe.

Add your eggs one at a time so they can incorporate properly.

Once you begin adding the flour, avoid excessive mixing. Overmixing can affect the finished texture of your pound cake.

Use the 18-cup Bundt pan called for in the recipe. This is a large cake with considerably more batter than a standard pound cake.

Prepare every groove of your Bundt pan thoroughly to help prevent sticking.

Don't over-swirl the chocolate and vanilla batters.

And most importantly, don't remove the cake just because the timer goes off. Baking times are a guide. Check the cake for doneness before removing it from the oven.

How Do I Know When My Mile High Pound Cake Is Done?

Because Mile High Pound Cakes contain a lot of batter, they need plenty of time to bake all the way through the center.

Insert a long toothpick, wooden skewer, or cake tester into one of the thickest portions of the cake. It should come out clean or with a few moist crumbs attached.

Wet batter means the cake needs additional baking time.

Try not to repeatedly open your oven during the early part of baking. Opening the door causes the oven temperature to fluctuate and can interfere with the cake's rise.

Can I Use Unsalted Butter instead of Salted Butter?

Yes! You can use unsalted butter instead of salted butter in this Mile High Marble Pound Cake.

• Salted butter adds flavor: I prefer salted butter in this recipe because the small amount of salt helps enhance the buttery, vanilla, and chocolate flavors in the cake.
• Unsalted butter works just as well: Swapping salted butter for unsalted butter should not significantly change the texture or structure of your pound cake.
• Add salt if needed: If you're using unsalted butter, you can add salt separately to help balance and enhance the flavors.
• Use the same amount: Replace the salted butter with an equal amount of unsalted butter. There's no need to adjust the amount of butter in the recipe.

If you prefer baking with unsalted butter or that's simply what you have on hand, feel free to use it. You could leave it unsalted or add 1 teaspoon of salt along with the butter.

Why Did My Chocolate and Vanilla Batter Blend Together?

You probably swirled it a little too much.

You only need enough movement to pull portions of the chocolate batter through the vanilla batter. If you continue stirring or swirling, you'll eventually begin combining the two and won't get that dramatic marble appearance when you cut into the cake.

Why Is My Pound Cake Dry?

Dry pound cake can have several causes, including using too much flour, overmixing the batter, or simply baking the cake too long.

Be especially careful when measuring flour. For the most accurate measurement, weigh your ingredients when possible or spoon the flour into the measuring cup and level it rather than packing it down.

Also start checking your cake around the recommended baking time. Every oven behaves a little differently.

How Should I Store Mile High Marble Pound Cake?

Once completely cooled, store the cake in an airtight container to prevent it from drying out.

Unglazed pound cake can generally be stored at room temperature for up to five days. For longer storage, pound cake freezes very well up to three months.

You can freeze the entire cake or individual slices. Individual slices are especially convenient because you can thaw only what you want to eat.

More Pound Cake Recipes

If you enjoyed this Mile High Marble Pound Cake, try some of my other pound cake recipes:

• Regular Marble Pound Cake
• Mile High Buttermilk Pound Cake: tall, buttery, and incredibly moist with a rich, tender crumb and just the right amount of tang from buttermilk.
• Mile High Sour Cream Pound Cake: This rich, moist cake has a tender crumb with a hint of vanilla, almond, and sour cream for an irresistible classic dessert.
• Mile High Dark Chocolate Buttermilk Pound Cake

Chocolate or vanilla? With this cake, you don't have to choose!

This Mile High Marble Pound Cake combines rich, buttery vanilla pound cake with chocolate batter swirled throughout for a beautiful cake that's just as good to look at as it is to eat.

And when you cut that first slice and see those chocolate and vanilla ribbons? That's the best part!

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