Follow these straightforward steps to create your Galaxy Chocolate Cake:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour two 9-inch round cake pans.

2. Combine Dry Ingredients: In a large mixing bowl, sift together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.

3. Add Wet Ingredients: In another bowl, beat the eggs, whole milk, oil, and vanilla together until combined.

4. Mix Together: Gradually add the wet ingredients to the dry ingredients, mixing until the batter is smooth and free of lumps.

5. Incorporate Boiling Water: Carefully stir in the boiling water into the cake batter. This step may make the batter thinner, but it helps create a moist cake.

6. Add Chocolate Chips (Optional): If using, fold in the chocolate chips for an extra chocolaty surprise.

7. Pour Batter into Pans: Divide the batter evenly between the prepared pans.

8. Bake: Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.

9. Cool the Cakes: Remove the cakes from the oven and let them cool in their pans for 20-30 minutes before transferring them to wire racks to cool completely.

10. Frost the Cake: Once the cakes are completely cool, spread an even layer of chocolate frosting on the top of one cake layer, then place the second layer on top and cover the entire cake with frosting.

11. Decorate: Finish by decorating the top with chocolate shavings or sprinkles.

Following these steps will lead you to a stunning Galaxy Chocolate Cake that will undoubtedly impress your guests.