Name: Chocolate Orange Cake with Blood Orange Buttercream Recipe
Prep time: 30 min
Cook time: 35 min
Total time: 1 h 25 min
Cuisine: American
Ingredients: ⅔ cup all purpose flour; ½ cup cocoa powder; ⅔ teaspoon baking soda; ⅓ teaspoon baking powder; ½ teaspoon salt; ⅓ cup buttermilk; 2 tablespoon neutral oil (grapeseed, olive, or avocado oil); 1 large egg (room temperature); ⅔ cup brown sugar (packed); 3 tablespoons orange zest; ¼ cup dark chocolate (melted and cooled); ⅓ cup espresso (or coffee); 3 egg whites; 1 cup granulated sugar; 1 ⅓ cup unsalted butter (room temperature); ¼ cup cooled blood orange juice reduction (simmer ½ cup juice on medium low until ¼ remains); Zest of 2 blood oranges; Dried orange slices; Fresh organic and food safe flowers

If you love the classic combination of chocolate and orange, you’re in for a real treat with this Chocolate Orange Cake with Blood Orange Buttercream Recipe. It’s perfectly moist, deeply chocolatey, and brightened by a creamy, tangy frosting that’s just irresistible.

A single round dark brown cake layer sits on a white marble round plate on a white marbled surface. On top of the cake, there is a thick, roughly spread layer of pale cream-colored frosting with a smooth and fluffy texture, slightly uneven in shape, covering most of the center of the cake. photo taken with an iphone --ar 2:3 --v 7

Jump to:

Why You'll Love This Recipe
Ingredients & Why They Work
Make It Your Way
Step-by-Step: How I Make Chocolate Orange Cake with Blood Orange Buttercream Recipe
Top Tip
How to Serve Chocolate Orange Cake with Blood Orange Buttercream Recipe
Make Ahead and Storage
Frequently Asked Questions:
Final Thoughts
Chocolate Orange Cake with Blood Orange Buttercream Recipe

Why You'll Love This Recipe

I was honestly surprised by how well the bright, citrusy blood orange buttercream complements the rich, intense chocolate base. It’s a flavor combo that really sings and feels both festive and elegant.

Moist and Fluffy Texture: Thanks to the whipped egg whites folded in, this cake is light yet indulgently rich.
Bright Citrus Flavor: Fresh orange and blood orange zest infuse bright notes that balance the chocolate beautifully.
Unique Buttercream Twist: The blood orange juice reduction gives the frosting tang and complexity you won’t find in regular buttercream.
Elegant Presentation: Finished with dried orange slices and edible flowers, it’s stunning enough for any special occasion.

Ingredients & Why They Work

To nail this Chocolate Orange Cake with Blood Orange Buttercream, fresh ingredients and quality staples are key. Whether it’s the vibrant citrus zest or the smooth melted dark chocolate, each piece plays a delicious role.

Flat lay of a small mound of fine all purpose flour, a small pile of rich cocoa powder, a few grains of baking soda and baking powder scattered delicately, a small pinch of coarse salt, a small white bowl of creamy buttermilk, a small white bowl with golden neutral oil, one large whole egg with a clean shell, a small heap of packed brown sugar, a small pile of bright orange zest, a small piece of dark chocolate, a small white bowl filled with dark espresso coffee, three whole uncracked egg whites, a small white bowl of granulated white sugar, a small mound of soft unsalted butter, a small white bowl with deep red blood orange juice reduction, bright blood orange zest curls, thin dried orange slices arranged neatly, and vibrant fresh organic edible flowers, all arranged symmetrically on simple white ceramic plates and bowls placed on a clean white marble surface, soft natural light, photo taken with an iPhone, professional food photography style, fresh ingredients, white ceramic bowls, no bottles, no duplicates, no utensils, no packaging --ar 2:3 --v 7 --p m7354615311229779997

All Purpose Flour: Provides structure while keeping the cake tender.
Cocoa Powder: Adds deep chocolate flavor without heaviness.
Baking Soda & Baking Powder: Work together for the perfect lift and crumb.
Salt: Enhances and balances all the sweet and citrus notes.
Buttermilk: Keeps the cake moist and adds a gentle tang.
Neutral Oil: Grapeseed, olive, or avocado oil ensures moistness without overpowering flavors.
Large Egg: Binds ingredients and adds richness.
Brown Sugar: Brings a subtle molasses note that deepens the cake’s flavor.
Fresh Orange Zest: Bursts of natural citrus oils give that signature orange punch.
Dark Chocolate: Melted and cooled for smooth, luxurious cocoa richness.
Espresso or Coffee: Enhances the chocolate flavor dramatically without tasting like coffee.
Egg Whites: Whipped for that airy lift that makes the cake incredibly light.
Granulated Sugar: Incorporated into egg whites for a glossy and stable meringue.
Unsalted Butter: The base for the buttercream, providing creamy richness.
Blood Orange Juice Reduction: Simmered down to concentrate its tangy sweetness for frosting with a twist.
Blood Orange Zest: Zesty notes that brighten up the buttercream.
Dried Orange Slices: Adds a pretty, textural garnish for visual appeal.
Fresh Organic & Food Safe Flowers: To finish your cake with an elegant, garden-fresh touch.

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Note: You'll find the complete list of ingredients, along with their exact measurements, in the printable recipe card at the bottom of this post.

Make It Your Way

One of the best parts about this Chocolate Orange Cake with Blood Orange Buttercream Recipe is how easy it is to adapt to your tastes or what you have on hand. Whether you want it lighter, more intense, or tailored for special occasions, there’s room to make this cake truly your own.

Variation: For a dairy-free version, swap the buttermilk for almond or oat milk mixed with a splash of vinegar, and use a plant-based butter for the buttercream. I tried this for a friend who’s lactose intolerant, and the cake was just as moist and flavorful with that same lovely citrus-chocolate balance.
Seasonal Twist: If blood oranges are out of season, you can gently substitute regular oranges in the buttercream. It’s a bit milder but still offers a bright, fresh flavor. I like using navel oranges in summer when blood oranges are scarce.
Flavor Boost: For an extra festive touch, add a teaspoon of finely chopped crystallized ginger to the dry ingredients—this adds a subtle spicy warmth that complements the chocolate and orange beautifully.
Decoration Ideas: Beyond dried orange slices and edible flowers, try sprinkling some chopped pistachios or pomegranate seeds on top for texture and color contrast. I once styled a cake this way and it made the presentation pop for a special brunch.

Step-by-Step: How I Make Chocolate Orange Cake with Blood Orange Buttercream Recipe

A slice of two-layer cake on a white plate, the bottom layer is dark brown with a soft texture, and the top layer is creamy white and smooth. On top of the cake slice, there are two thin, round orange slices arranged side by side, and a small sprig of green with tiny white flowers. In the background, the rest of the cake with the same two layers and orange slices on top is slightly blurred, sitting on a white plate on a white marbled surface. Photo taken with an iphone --ar 2:3 --v 7

Step 1: Prepping the Perfect Batter Base

Start by preheating your oven to 350°F (175°C) so it’s nice and hot when you’re ready to bake. In a medium bowl, sift together the all purpose flour, cocoa powder, baking soda, baking powder, and salt. This ensures no lumps and evenly distributes those leavening agents, which help the cake rise perfectly.

In a larger bowl, whisk together the buttermilk, neutral oil, room-temperature egg, packed brown sugar, fresh orange zest, melted dark chocolate, and espresso until smooth and combined. The espresso deepens the chocolate flavor without overpowering—it’s a game changer for moistness and taste.

Step 2: Bringing Wet and Dry Ingredients Together

Slowly add the dry flour mixture into your wet chocolate-orange mixture, stirring gently just until everything is combined. Avoid overmixing here to keep the texture tender and light—it’s all about balance. At this stage, your batter will be thick but smooth, notable for its rich cocoa color flecked with bits of bright orange zest.

Step 3: Whipping Up the Meringue Magic

In a clean, dry bowl, beat the 3 egg whites until they reach soft peaks. Then, gradually add the granulated sugar while continuing to whip until you have glossy, stiff peaks. This meringue is what gives the cake a beautifully light and airy texture, adding lift without heaviness.

Step 4: Folding for Fluffiness

Gently fold the whipped egg whites into the cake batter in three parts. Use a spatula and a soft hand—fold just until the mixture is well combined but still fluffy. This step is crucial for achieving the moist, tender crumb that makes this cake so special.

Step 5: Baking to Perfection

Pour the batter evenly into a prepared 8-inch round cake pan lined with parchment paper and lightly greased. Bake in your preheated oven for 35 minutes. You’ll know it’s done when a toothpick inserted into the center comes out clean, and the edges gently pull away from the pan. Your kitchen will smell heavenly—rich chocolate with a hint of zesty orange!

Step 6: Cooling and Getting Ready for Frosting

Allow the cake to cool in the pan for 10 minutes to set, then carefully transfer it to a wire rack to cool completely. This step can’t be rushed—if the cake is even slightly warm when you spread the buttercream, it will melt and slide, which isn’t as pretty or delicious.

Step 7: Crafting the Blood Orange Buttercream

Beat the room-temperature unsalted butter until it’s creamy and whipped—this usually takes about 3 to 5 minutes. Slowly add the cooled blood orange juice reduction along with the zest of two blood oranges. Keep beating until the frosting is smooth, spreadable, and bursting with bright, tangy citrus flavor that perfectly balances the rich cake.

Step 8: Frosting and Decorating Your Masterpiece

Once your cake is fully cooled, generously spread the blood orange buttercream evenly over the top and sides with an offset spatula. For that elegant finishing touch, garnish with dried orange slices and fresh, food-safe flowers. This not only looks stunning but adds a hint of natural aroma and texture.

Step 9: Time to Slice and Enjoy!

Slice your beautiful cake into 8 equal pieces and serve. You’ve created a dessert that's a perfect marriage of deep chocolate and vibrant citrus, guaranteed to impress family and friends!

Top Tip

These tips are little nuggets of wisdom that make all the difference when baking your Chocolate Orange Cake with Blood Orange Buttercream Recipe. They help ensure your cake turns out beautifully textured, flavorful, and picture-perfect every time.

Use Fresh Zest: Freshly grated orange and blood orange zest bring vibrant citrus notes that canned or dried zest just can’t match. It really brightens up the cake and buttercream.
Whip Egg Whites Properly: I’ve learned that whipping those 3 egg whites to stiff, glossy peaks is critical. It gives this cake its wonderfully light and airy texture despite being rich and chocolatey.
Fold Gently: When folding the meringue into your batter, use a gentle hand and fold in thirds. This keeps your batter airy and prevents deflating, so your cake stays tender and moist.
Cool Completely Before Frosting: To avoid a melty mess, always let the cake cool fully on a wire rack before slathering on that lovely blood orange buttercream.

How to Serve Chocolate Orange Cake with Blood Orange Buttercream Recipe

A round cake with one visible layer of smooth white cream frosting is placed on a white plate. On top of the cake, there is a ring of thin, dried citrus slices in bright orange and deep red colors evenly spaced along the edge. Around the plate, there are whole and halved fresh citrus fruits along with green leaves and pale pink flowers on a white marbled surface. The light is soft and natural. photo taken with an iphone --ar 2:3 --v 7

Garnishes

For a stunning presentation, garnish your cake with dried orange slices that echo the citrus theme and add a lovely rustic charm. Fresh, organic, and food-safe flowers not only lend a pop of color but also create an elegant, festive look that’s perfect for special occasions or when you want to impress your guests.

Side Dishes

This Chocolate Orange Cake pairs beautifully with a few thoughtful sides to round out the dessert experience. A simple dollop of freshly whipped cream or a scoop of vanilla bean ice cream balances the rich chocolate and tangy orange flavors. Alternatively, a fresh berry compote or candied pecans offer contrasting textures and bursts of fruity sweetness.

Make Ahead and Storage

Storing Leftovers

Store any leftover Chocolate Orange Cake with Blood Orange Buttercream Recipe in an airtight container in the refrigerator. It will stay fresh and moist for up to 4 days. This helps keep the buttercream firm and the cake texture just right.

Freezing

You can freeze this cake either frosted or unfrosted. For best results, wrap it tightly in plastic wrap and then aluminum foil to prevent freezer burn. It freezes well for up to 2 months. When ready to enjoy, thaw overnight in the refrigerator before serving.

Reheating

If you prefer your cake slightly warm, especially if unfrosted, reheat individual slices in a microwave for about 10-15 seconds. Be cautious not to overheat, or the buttercream can melt and lose its lovely texture. Enjoy at room temperature for the best flavor balance.

Frequently Asked Questions:

Can I substitute regular oranges for blood oranges in the buttercream?

Yes! While blood oranges add a unique vibrant color and slightly tangier flavor, regular oranges can be used for the buttercream if blood oranges aren’t available. The flavor will be milder but still delicious.

What if I don’t have buttermilk?

You can easily make a buttermilk substitute by adding 1 tablespoon of white vinegar or lemon juice to ⅓ cup of milk. Let it sit for 5 minutes before using in the recipe.

How do I know when the cake is done baking?

Bake at 350°F for 35 minutes or until a toothpick inserted into the center comes out clean or with just a few moist crumbs attached. Every oven is different, so keep an eye towards the end of baking time.

Can I make this cake ahead for a party?

Absolutely! You can bake and bake the cake layers a day ahead and keep them tightly wrapped at room temperature. The blood orange buttercream can be made the day before and refrigerated. Assemble and decorate the cake the day of your event for fresh and beautiful results.

Final Thoughts

Baking this Chocolate Orange Cake with Blood Orange Buttercream Recipe is more than just making a dessert—it’s about creating a celebration of flavors that evoke joy and warmth. Whether it’s a special occasion or a treat for yourself, the harmonious combination of rich chocolate and zesty orange will delight every bite. I hope this recipe becomes a cherished favorite in your kitchen, ready to brighten days and bring smiles with each slice.