Ensure your sourdough starter unfed (straight from the fridge). It should be at room temperature.
In a large mixing bowl, cream together the softened butter and granulated sugar until light and fluffy.
Beat in the eggs and vanilla extract until well combined.
Mix in the sourdough starter.
**In a separate bowl, whisk together the all-purpose flour, baking soda, and salt.
Combine the Dry and Wet Ingredients:
Gradually add the dry ingredients to the wet mixture, mixing until just combined. Be careful not to overmix.
Fold in the Diced Strawberries:
Gently fold in the diced strawberries.
Bake:
Pour the cake batter into a greased and floured 9-inch round cake pan. Bake in a preheated oven at 350°F (175°C) for 30-35 minutes or until a toothpick inserted into the center comes out clean.
Cool:
Allow the cake to cool in the pan for 10 minutes, then remove it from the pan and let it cool completely on a wire rack.
Prepare the Strawberry Cream Cheese Frosting:
In a mixing bowl, beat the softened cream cheese and butter until smooth and creamy.
Gradually add the powdered sugar and continue to beat until well combined.
Add Strawberry Puree:
Mix in the strawberry puree and vanilla extract until the frosting is light and fluffy. If the frosting is too thin, you can add more powdered sugar to achieve your desired consistency.
Frost the Cake:
Once the cake is completely cool, spread the strawberry cream cheese frosting evenly over the top and sides of the cake.
Optional: Decorate with Fresh Strawberries:
You can decorate the cake with fresh strawberry slices for a beautiful finishing touch.
Serve and Enjoy:
Slice the cake, serve, and enjoy your Sourdough Strawberry Cream Cheese Frosting Cake!