01 -
Preheat the oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
02 -
In a large bowl, whisk together the flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt.
03 -
Add the eggs, milk, vegetable oil, and vanilla extract to the dry mixture. Beat until smooth. Stir in the boiling water; the batter will be thin.
04 -
Divide the batter evenly between the prepared pans. Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
05 -
Allow the cakes to cool in the pans for 10 minutes. Then transfer them to wire racks to cool completely.
06 -
In a mixing bowl, beat the butter until creamy. Gradually add powdered sugar and cocoa powder, alternating with milk and vanilla extract. Beat until fluffy and smooth.
07 -
Spread frosting on top of one cake layer. Stack the second layer on top and frost the entire cake. Serve and enjoy.