Creating this delightful Chocolate Cake with Chocolate Frosting can be a breeze if you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.
2. Mix Dry Ingredients: In a large mixing bowl, combine the flour, sugar, cocoa powder, baking powder, baking soda, and salt. Whisk together until well combined.
3. Combine Wet Ingredients: In another bowl, mix the eggs, milk, vegetable oil, and vanilla extract until fully blended.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients. Mix until just combined.
5. Add Boiling Water: Slowly stir in the boiling water. The batter will be thin, which is normal.
6. Fold in Chocolate Chips: If using, fold in the semi-sweet chocolate chips gently.
7. Pour Batter: Divide the batter evenly between the prepared cake pans.
8. Bake: Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
9. Cool: Allow the cakes to cool in their pans for about 15 minutes. Then, gently transfer them to wire racks to cool completely.
10. Make Frosting: In a large bowl, beat the softened butter until creamy. Gradually add the powdered sugar and cocoa powder, mixing until combined. Add salt, vanilla extract, and heavy cream. Beat until smooth and fluffy.
11. Assemble the Cake: Once the cakes are completely cooled, place one layer on a serving platter. Spread a layer of frosting on top. Place the second layer on top and frost the top and sides of the cake.
12. Decorate: Feel free to add chocolate shavings, sprinkles, or fresh berries for decoration if desired.

Following these steps will guide you in creating a Chocolate Cake with Chocolate Frosting that is sure to be a crowd-pleaser!