Deep Dark Secret Chocolate Cake: A Decadent, Moist Delight

Preheat the Oven: Preheat your oven to 350°F (175°C) and grease and flour two 9-inch round cake pans. You can also line the bottoms with parchment paper to ensure easy removal.
Prepare the Dry Ingredients: In a large bowl, whisk together the flour, baking powder, baking soda, salt, and cocoa powder until evenly combined.
Mix the Wet Ingredients: In a separate bowl, whisk the eggs, sugar, milk, vegetable oil, and vanilla extract until smooth and well combined.
Combine the Wet and Dry Ingredients: Gradually add the wet ingredients to the dry ingredients, mixing until just combined. Be careful not to overmix, as this can affect the texture.
Add the Sour Cream: Stir in the sour cream until the batter is smooth and creamy.
Add the Coffee (or Water): Slowly pour in the boiling water (or hot coffee), mixing gently. The batter will be quite thin, but this is what gives the cake its moist texture.
Bake the Cake: Divide the batter evenly between the prepared cake pans. Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
Cool the Cake: Allow the cakes to cool in the pans for about 10 minutes before transferring them to a wire rack to cool completely.
Frost (Optional): Once the cakes are completely cool, frost with your favorite chocolate frosting, ganache, or dust with powdered sugar for a simple finish.
Serving and Storage Tips: