Decadent Sourdough Chocolate Cake with Rich Chocolate Frosting

This Sourdough Chocolate Cake is the ultimate treat for chocolate lovers. Made with a sourdough starter, this cake has a moist and tender crumb that is perfectly balanced with a deep chocolate flavor. Topped with a rich chocolate frosting, this cake is sure to be a hit at any gathering or celebration. Don't be discouraged by the sourdough starter, it adds a unique tanginess that enhances the chocolatey goodness of this cake. Give it a try and prepare to be amazed!

Ingredients

• 1/2 cup (113g) unsalted butter, softened
• 1 cup (200g) granulated sugar
• 2 large eggs
• 1 teaspoon vanilla extract
• 1 cup (240g) active sourdough starter
• 1/2 cup (120ml) whole milk
• 1 3/4 cups (220g) all-purpose flour
• 3/4 cup (75g) unsweetened cocoa powder
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 cup (120ml) boiling water
• For the Chocolate Frosting:
• 1 cup (226g) unsalted butter, softened
• 4 cups (480g) powdered sugar
• 1/2 cup (45g) unsweetened cocoa powder
• 1/4 cup (60ml) whole milk
• 1 teaspoon vanilla extract

Directions

1. Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy.
3. Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.
4. Mix in the sourdough starter and whole milk until well combined.
5. In a separate bowl, whisk together the all-purpose flour, cocoa powder, baking powder, baking soda, and salt.
6. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
7. Stir in the boiling water until the batter is smooth. The batter will be thin, but don't worry, it will bake into a moist and delicious cake.
8. Divide the batter evenly between the prepared cake pans.
9. Bake in the preheated oven for 25-30 minutes, or until a toothpick inserted into the center of the cakes comes out clean.
10. Remove from the oven and allow the cakes to cool in the pans for 10 minutes. Then, transfer them to a wire rack to cool completely.
11. To make the chocolate frosting, cream together the softened butter, powdered sugar, cocoa powder, milk, and vanilla extract until smooth and creamy. If the frosting is too thick, add a little more milk. If it's too thin, add more powdered sugar.
12. Once the cakes are completely cooled, spread a layer of chocolate frosting on top of one cake. Place the second cake on top and frost the entire cake with the remaining chocolate frosting.
13. Decorate as desired and serve at room temperature. Enjoy!

Interesting Facts