In a separate bowl, combine the wet ingredients. Mix the flour mixture and egg mixture until well incorporated then pour in the boiling water slowly while mixing.
Divide the batter evenly between the prepared pans and tap pans on the counter to get rid of any air bubbles. Bake the cakes for about 28-30 minutes or until fully cooked through.
For the frosting, mix the unsalted butter until smooth, add the cocoa powder, powdered sugar, cream cheese, Nutella, milk, and vanilla extract. Mix on medium-high speed for about 3-4 minutes.
- Allow the cakes to completely cool before frosting.- Frost the cooled cakes with the Nutella frosting, raspberries, chocolate hazelnut pirouettes, if desired and enjoy!