Chocolate Birthday Cake Recipe

Chocolate Birthday Cake Recipe

4.5 Stars (8 Voters)
This chocolate cake is the best chocolate birthday cake! The recipe is super easy and forgiving. This chocolate birthday cake is soft, moist, rich, topped with chocolate frosting and sprinkles. If your friends and family love chocolate cake, make them this cake for their birthday and they will thank you.
1 Hour
20 Minutes

    For the cake:

    • 1¾ cups (220g) All-purpose flour
    • 2/3 cup (65g) Cocoa powder
    • 1½ cups + 2 Tbsp (325g) Sugar
    • 1 teaspoon Baking powder
    • 1 teaspoon Baking soda
    • 1/4 teaspoon Salt
    • 1/2 cup (120ml) Buttermilk
    • 2 Eggs
    • 1/2 cup (60ml) Oil
    • 2 teaspoons Instant coffee (optional)
    • 1 cup (240ml) Hot water

    For the frosting:

    • 4 oz (115 grams) semisweet chocolate, chopped
    • 6 tablespoons (85 grams) unsalted butter
    • 1 cup (130g) Powdered sugar
    • 2 tablespoons Cocoa powder
    • 2 tablespoons Milk/Heavy cream
    • Sprinkles for decorations

  1. Make the cake: Preheat oven to 350°F (180°C). Line a 9*13-inch (23*33cm) baking pan with parchment paper then spray with cooking spray. Set aside.
  2. In a large bowl mix flour, cocoa powder, sugar, baking powder, baking soda and salt. Set aside.
  3. In a separate bowl, whisk eggs, oil, buttermilk and vanilla extract. Whisk until combined and smooth.
  4. Add the wet ingredients to the dry ingredients and mix until combined. A a small bowl or a mug whisk hot water with instant coffee, pour in the coffee into the cake batter and mix until combined.
  5. Pour the batter into prepared pan and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
  6. Allow to cool completely before frosting.
  7. Make the frosting: place chocolate and butter in a heatproof bowl, set the bowl over a pot with simmering water (double boiler) and melt completely. You also can melt it in the microwave (30 second pulses). Add powdered sugar, cocoa powder, vanilla extract and milk. Whisk until combined.  
  8. Frost the cake as desired, decorate with sprinkles.
  9. Refrigerate for at least 1 hour before serving.


  • If you don't like strong chocolate flavours in the frosting reduce the amount of cocoa powder to 1 tablespoon or don't use in at all.
  • You won’t feel the coffee, but it helps bring out chocolate flavor. If prefer not to use coffee, use same amount of water.
  • You can prepare the cake a day ahead.
  • If the frosting is too sweet to your taste, use less powdered sugar.
  • B
    Brenda Prins

    If you omit the coffee( I hate the taste of coffee) would you just need to add a cup of water then?

  • T
    The Poopie

    Instead of using cocoa powder, dry buckets full of your own fecal matter and then grind that up into fine powder as a cocoa substitute and then use that as the chocolate cake, brownie or cookie making recipe ingredient and eat poop cake, cookies or brownies and it tastes great! Your fingers will smell like you stuck them up your butt.


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