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chocolate sheet cake
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The Best Chocolate Sheet Cake

Prep Time 20 minutes
Cook Time 20 minutes
Cooling 1 hour
Total Time 1 hour 40 minutes
Servings 12

Ingredients

  • 1 ¾ cups all purpose flour 210 g
  • 2 cups sugar 400 g
  • ¾ cup cocoa 75 g
  • 2 teaspoons baking soda 10 ml
  • 1 teaspoon baking powder 5 ml
  • 1 teaspoon salt 5 ml
  • 2 eggs
  • 2 teaspoons vanilla extract 10 ml
  • 1 cup buttermilk 240 ml
  • ½ cup oil canola or vegetable, 120 ml
  • 1 cup hot coffee 240 ml

Whipped Ganache:

  • 5 oz chocolate
  • 4 tablespoons butter 57 g
  • 3/4 cup sugar 150 g
  • 3/4 cup heavy cream 180 ml
  • 2 teaspoons vanilla 10 ml
  • Pinch of salt

Instructions

Cake:

  • Combine the sugar, flour, cocoa powder, baking soda, baking powder, and salt into a bowl. Stir together with a whisk until evenly combined
  • Add the vanilla, eggs, buttermilk, and oil and stir until combined
  • Once combined, add the hot coffee. Stir quickly to ensure the hot coffee is evenly distributed. The batter will be very thin
    chocolate cake batter
  • Pour the batter into a greased and floured 9x13" pan and cook for ~20 minutes (if using a sheet pan) on 350 F - make sure a toothpick comes out clean
  • Set aside to cool

Whipped Ganache:

  • To make the ganache, add chocolate, butter, salt, and vanilla into a bowl. Set asideIn a small pan over medium heat, heat cream and sugar until hot but just before boiling
  • Pour the heated cream and sugar over the bowl of chocolate and let it set for 1 minute. Stir until smooth
    chocolate ganache
  • Set in the fridge until cooled but not hard
    chocolate ganache
  • Once it is cooled, whip with a hand mixer or in a stand mixer for 1-2 minutes until fluffy and light
  • Ice the cake with the whipped ganache
    chocolate sheet cake

Notes

The cake batter recipe is based on Hershey's famous black magic cake