Chocolate Sheet Cake – A deliciously moist and fluffy chocolate cake spiced with cinnamon and topped with chocolate buttercream frosting!

Chocolate Sheet Cake | marshasbakingaddiction.com @marshasbakeblog

Chocolate cake. One of the best desserts ever, and is a lot of people’s favourite – including mine. Today, I bring you my Chocolate Sheet Cake. A deliciously moist and fluffy chocolate cake baked in a rectangle baking tray and generously topped with a creamy chocolate buttercream frosting. I’ve spiced this cake with a little cinnamon to give it an ‘autumn’ taste, and it really does pair well with the chocolate flavour!

Chocolate Sheet Cake | marshasbakingaddiction.com @marshasbakeblog

For the chocolate buttercream, I topped the cake with a thin layer, then I piped swirls onto each slice. Leave about 1/2 – 1 cup of frosting for the swirls, and spread the rest on the cake.

Want a slice? 😉

Chocolate Sheet Cake | marshasbakingaddiction.com @marshasbakeblog

Chocolate Sheet Cake | marshasbakingaddiction.com @marshasbakeblog

Enjoy!

Yield: 15 slices

Chocolate Sheet Cake

A deliciously moist and fluffy chocolate cake spiced with cinnamon and topped with chocolate buttercream frosting!

25 minPrep Time

20 minCook Time

45 minTotal Time

Save Recipe

Ingredients

    For the Cake
  • 2 cups (200g) cake flour*
  • 1/2 cup (50g) cocoa powder
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 2 teaspoons ground cinnamon
  • 3 large eggs, room temperature
  • 1 and 1/4 cups (250g) light brown sugar
  • 2 teaspoons vanilla extract
  • 1/2 cup (115g) unsalted butter, melted
  • 3/4 cup (175g) greek yoghurt
  • For the Frosting
  • 4 cups (500g) icing/powdered sugar
  • 1 cup (226g) unsalted butter, softened
  • 1/2 cup (50g) cocoa powder
  • 3 - 4 tablespoons milk
  • 1 teaspoon vanilla extract

Instructions

    For the Cake
  1. Preheat the oven to 180C/350F/Gas 4. Grease a 13x9-inch pan, and set aside.
  2. Whisk together the flour, cocoa powder, baking powder, baking soda, salt, and cinnamon. Set aside.
  3. Whisk together the eggs. Add the sugar, and whisk until combined. Add the vanilla extract, butter, and yoghurt and whisk until combined. Gradually fold in the dry ingredients.
  4. Pour the batter into the prepared pan, and spread out evenly. Bake for 18 - 20 minutes, or until a toothpick inserted into the centre comes out clean. Allow to cool completely in the pan on a wire rack.
  5. For the Frosting
  6. Using a handheld or stand mixer, beat together the butter and icing sugar until light and fluffy. Beat in the cocoa powder, milk and vanilla until smooth, and spreadable. Add more milk if needed.
  7. Spread the frosting evenly over the cooled cake (leaving about 1/2 - 1 cup for piping). Transfer the remaining frosting to a piping bag and pipe swirls on each slice of cake. Garnish with sprinkles.

Notes

*Make your own cake flour! Measure out 2 cups (250g) of plain/all-purpose flour, remove 4 tablespoons, and replace with 4 tablespoons of cornflour/cornstarch. Sift well.

http://marshasbakingaddiction.com/chocolate-sheet-cake/

Chocolate Sheet Cake | marshasbakingaddiction.com @marshasbakeblog

Chocolate Sheet Cake | marshasbakingaddiction.com @marshasbakeblog

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15 Comments

15 Comments on Chocolate Sheet Cake

  1. Felesha Bell
    September 5, 2016 at 1:26 pm (5 months ago)

    If I could just get my fork through this screen!!! Looks so moist!!

    Reply
  2. Amy
    September 5, 2016 at 2:13 pm (5 months ago)

    I haven’t had a chocolate sheet cake in ages! This looks delicious! Thanks for sharing the recipe!

    Reply
  3. April J Harris
    September 5, 2016 at 3:39 pm (5 months ago)

    What a gorgeous sheet cake – it looks absolutely luscious! I like cinnamon and chocolate together too – they really compliment each other. This is definitely fall comfort food!

    Reply
  4. Demeter | Beaming Baker
    September 5, 2016 at 4:01 pm (5 months ago)

    There’s always so much to love whenever I stop by your blog, Marsha. 🙂 I was just craving chocolate cake in sheet cake form–and poof! Here it is, like magic. Your cake is so beautiful and amazing! Love that you added a bit of autumn flavors in this too. Hope you’re having a fantastic start to the week my friend. Sharing of course! xo

    Reply
    • Marsha
      September 5, 2016 at 6:57 pm (5 months ago)

      Thank you, Demeter! Hope you have a great week, too! 🙂

      Reply
  5. Maria
    September 5, 2016 at 6:30 pm (5 months ago)

    I love the use of greek yogurt in the batter …definitely on my to do list. Thanks for sharing.

    Reply
  6. Shelby @ Go Eat and Repeat
    September 6, 2016 at 11:30 am (5 months ago)

    These cake looks amazing! I’m ashamed I never made a sheet tray cake before- that definitely needs to change!

    Reply
    • Marsha
      September 6, 2016 at 9:07 pm (4 months ago)

      Thanks, Shelby! You totally need to make one! 🙂

      Reply
    • Marsha
      September 10, 2016 at 6:07 pm (4 months ago)

      Thanks, Vanessa! 🙂

      Reply
  7. Pat C.Wilson
    September 19, 2016 at 6:16 pm (4 months ago)

    i wish i could take them out from my screen lol they look so sweettt….
    i’m a big fan of chocolate. can’t wait to try this out.
    thanks for sharing, Marsha.

    Reply
  8. Sabrina Zaragoza
    October 9, 2016 at 7:38 am (3 months ago)

    Could not get my eyes out of the picture. Great design. Bet this delicious, too. Thanks for sharing, Marsha.

    Reply
    • Marsha
      October 9, 2016 at 10:29 am (3 months ago)

      Thank you, Sabrina!

      Reply

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