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Chocolate Sourdough Cake with Buttercream Frosting

Sourdough Chocolate Cake

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Prep Time 20 minutes
Cook Time 35 minutes

Equipment

  • 1 large mixing bowl
  • 1 9x13 inch baking pan
  • hand or stand mixer
  • spatula
  • measuring cups/ spoons
  • cooling rack

Ingredients
  

For the Cake

  • 1 cup active sourdough starter
  • 1/2 cup milk
  • 1/2 cup heavy cream
  • 2 cups flour
  • 1 cup avocado oil
  • 1.5 cups sugar
  • 2 tsp vanilla extract
  • 1 tsp salt
  • 1 tsp baking powder
  • 3/4 cups cocoa powder
  • 2 large eggs

For the Buttercream Icing

  • 8 oz butter at room temperature
  • 4 cups powdered sugar
  • 2 tsp vanilla extract
  • 1 tbsp heavy cream

Instructions
 

Sourdough Chocolate Cake

  • Preheat your oven to 350°F (175°C) and grease a 9x13 inch baking pan.
  • In a large mixing bowl, sift together 2 cups of flour, 3/4 cup cocoa powder, 1 tsp baking soda, and 1 tsp salt.
  • In another large bowl, mix 1 cup sourdough starter, 1/2 cup milk, 1/2 cup heavy cream, 1 cup avocado oil, 1.5 cups sugar, and 2 tsp vanilla extract. Beat in 2 eggs until well combined.
  • Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
  • Pour the batter into the prepared baking pan.
  • Bake for 30-40 minutes or until a toothpick inserted into the center comes out clean.
  • Allow to cool before applying frosting.

Buttercream Icing

  • Whip 8 oz of butter on medium speed for about 15 minutes until light and fluffy.
  • Gradually add 4 cups of sifted powdered sugar, 2 tsp vanilla extract, and 1 tbsp heavy cream, mixing until smooth.
  • Once the cake is cool, spread the icing over the cake evenly.
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