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.

Credit:Robby Lozano, Food Stylist: Jennifer Wendorf
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.

Credit:Robby Lozano, Food Stylist: Jennifer Wendorf
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?

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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.

Credit:Robby Lozano, Food Stylist: Jennifer Wendorf
Don’t like espresso?
You’ll never know it’s there.
It really does balance all the flavors and hides in the background.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.