Step 1: Preheat the Oven Preheat your oven to 350°F (175°C) and grease and flour two 9-inch round cake pans.
Step 2: Mix the Dry Ingredients In a large mixing bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt until well combined.
Step 3: Add Wet Ingredients Add the eggs, milk, vegetable oil, and vanilla extract to the dry ingredients. Beat with an electric mixer on medium speed for 2-3 minutes until the batter is smooth.
Step 4: Stir in Boiling Water Slowly pour in the boiling water while mixing. The batter will be thin—this is normal and helps make the cake moist.
Step 5: Bake the Cake Pour the batter evenly into the prepared cake pans. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
Step 6: Cool the Cake Allow the cakes to cool in the pans for 10 minutes, then transfer them to wire racks to cool completely.
Step 7: Frost and Serve Once the cake is cool, frost with your favorite chocolate frosting. Slice, serve, and enjoy!