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Chocolate Wacky Cake with Chocolate Frosting

Ingredients

  • Chocolate Cake:
  • 1 1/2 cups all-purpose flour
  • 1 cup light or dark brown sugar
  • 1 tsp baking soda
  • 1 tsp fine sea salt
  • 1/3 cup Dutch process cocoa powder
  • 1 cup ice water
  • 2 tsp pure-vanilla extract
  • 1 Tbsp white vinegar
  • 6 Tbsp vegetable oil
  • Chocolate Frosting:
  • 14 Tbsp unsalted butter room temperature
  • 3 1/2 cups confectioners’ sugar
  • 1 cup Dutch process cocoa powder
  • 1/2 to 2/3 cup heavy cream or milk
  • 1/4 tsp table salt
  • 1 Tbsp vanilla extract
  • Rainbow sprinkles for decorating optional, but highly encouraged

Instructions

  • To make the cake, preheat the oven to 350 degrees. In a medium sized bowl, whisk together the flour, sugar, cocoa powder, soda and salt.
  • Add the water, vanilla, vinegar and oil and whisk until fully incorporated and smooth.
  • Transfer to a 9-inch pie plate and bake for 25 to 35 minutes, until a toothpick inserted into the center of the cake comes out with a moist crumb or two.
  • Make the frosting while the cake cools.
  • To make the frosting, place the butter in the bowl of a stand mixer fitted with the paddle attachment, and beat the butter on medium speed until soft and smooth.
  • Whisk the sugar and cocoa powder together in a medium-sized bowl and add a cup at a time to the butter, mixing to combine on low, and alternating with the cream.
  • Add the salt and vanilla and mix for about 5 minutes on medium until smooth, fluffy and spreadable, adding cream, a tablespoon at a time, if necessary.
  • Generously frost the cake, decorate with rainbow sprinkles, if using, and serve.