Creating the Butterfinger Bomb Cake will be a breeze if you follow these steps:

1. Preheat the 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 bowl, whisk together the flour, sugar, cocoa powder, baking powder, and salt until well combined.
3. Combine Wet Ingredients: In a separate bowl, mix the milk, vegetable oil, eggs, and vanilla extract until smooth.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, stirring until just combined. Be careful not to overmix.
5. Add Boiling Water: Slowly stir in the boiling water to the batter. It will be thin, but that’s okay!
6. Divide Batter: Pour the batter evenly into the prepared cake pans.
7. Bake: Place in the preheated oven and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
8. Cool: Once baked, remove the cakes from the oven and let them cool in the pans for 20 minutes. Then, transfer them to wire racks to cool completely.
9. Prepare the Frosting: In a large bowl, beat the softened butter until creamy. Gradually add powdered sugar and peanut butter, mixing until smooth. Add milk to achieve the desired consistency and mix in the vanilla extract.
10. Assemble the Cake: Once the cakes are completely cool, place one layer on a serving platter. Spread a generous layer of frosting on top. Add the second layer and frost the top and sides of the cake.
11. Decorate: Sprinkle the crushed Butterfinger bars on top of the frosted cake for a delicious finishing touch.

By following these steps, you’ll create a Butterfinger Bomb Cake that is not only incredible in flavor but also stunning in appearance.