This chocolate birthday cake is the best way to celebrate.

So that’s what we did.

I tasked the Test Kitchen with developing the most decadent chocolate birthday cake possible.

Southern Living Chocolate Birthday Cake on a cake plate to serve

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This three-layer chocolate birthday cake is absolutely stunning.

Learn how to make a chocolate birthday cake, and strike up the birthday song.

This is one special treat.

Southern Living Chocolate Birthday Cake ingredients

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We’ve highlighted the keys ones here.

Keep scrolling for the full ingredient list and step-by-step instructions for the recipe.

What’s the Secret to the Best Chocolate Flavor?

Southern Living Chocolate Birthday Cake sliced to serve

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If you want a supremely chocolaty chocolate birthday cake, you’re going to need one thing: espresso.

A good chocolate or cocoa has a mixture of sweetness, bitterness, and fruity flavors.

We’ve used this trick in many recipes, includingChocolate Mousse,Brownie Pudding, andChocolate Lava Cakes.

Southern Living Chocolate Birthday Cake preparing the pans

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Don’t like espresso?

You’ll never know it’s there.

It really does balance all the flavors and hides in the background.

Southern Living Chocolate Birthday Cake adding the wet ingredients to the batter

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What Kind of Chocolate Is Best for Chocolate Birthday Cake?

This recipe uses only cocoa powder.

The unsweetened cocoa powder is also acidic, which reacts with the baking soda.

Southern Living Chocolate Birthday cake batter in the pans before baking

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What Frostings Can You Use for Chocolate Birthday Cake?

Instead of chocolate, tryVanilla ButtercreamorButtermilk Frosting.

You could even do aHomemade Caramel Frostingand sprinkle it with pecans for a quick “turtle” birthday cake.

Southern Living Chocolate Birthday Cake layers after baking

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We wouldn’t argue with a peanut butter frosting either.

How Do You Store Chocolate Birthday Cake?

Also, the cake shouldn’t be at room temperature for more than two hours.

Southern Living Chocolate Birthday Cake beating the butter for the frosting

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(The frosting may get too soft, and the layers could slide.)

How Far in Advance Can You Make a Chocolate Birthday Cake?

you’re free to add some moisture back to the layers by brushing on somesimple syrupbefore frosting.

Southern Living Chocolate Birthday Cake adding the powdered sugar and cocoa powder to the frosting

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The buttercream can also be made up to two days in advance.

Then, beat the frosting with a stand mixer until pliable and at room temperature.

Just don’t overbeat it.

Southern Living Chocolate Birthday Cake after adding the rest of the ingredients to the frosting

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More Decoration Ideas

We obviously love sprinkles for chocolate birthday cakes, or anybirthday cakefor that matter.

But you might get creative: Use colorful frostings or gels to make unique designs and write birthday wishes.

Stick chocolate candies around the edges for a fun border.

Southern Living Chocolate Birthday Cake trimming the tops of the cake layers

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Edible flowers are always sweet; just be sure to source them from a reputable grower.

Finally, you could go classic with a drizzle of dark and white chocolates for an art-inspired finish.

Ingredients

Chocolate Cake:

Baking spray with flour

2cups(about 8 1/2 oz.

Southern Living Chocolate Birthday Cake filling the cake with the frosting

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)all-purpose flour

2cupsgranulated sugar

3/4cup(about 2 1/2 oz.

)unsalted butter, softened

7 1/2cups(about 24 oz.

)sifted powdered sugar

2cups(about 6 1/2 oz.

Southern Living Chocolate Birthday Cake frosting the top and sides of the cake

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Divide batter evenly among 3 cake pans (about 2 cups each).

Let cakes cool completely in cake pans on a wire rack, 35 to 40 minutes.

Finish Chocolate Buttercream:

With mixer running on lowest setting, add vanilla and salt.

Southern Living Chocolate Birthday Cake decorating the cake

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Assemble cake:

To assemble, remove cooled cakes from cake pans, and discard parchment paper.

If necessary, slightly trim tops of each cake layer to create a flat surface.

Spoon 3/4 cup Chocolate Buttercream into a piping bag fitted with desired piping tip; set aside for decorating.

Place 1 cake layer, top side up, on a plate or cake stand.

Top with second cake layer, and repeat process with 1 1/4 cups Chocolate Buttercream.

Frost cake sides:

Top with third cake layer, top side down.

Spread remaining Chocolate Buttercream evenly over top and sides of cake.

Decorate cake:

Pipe reserved 3/4 cup Chocolate Buttercream onto Chocolate Cake, and decorate as desired.

Garnish with sprinkles, and serve.