In a large bowl combine flour, cocoa powder, baking powder, baking soda, sugar, and salt.
In a medium bowl whisk using the hand kitchen mixer eggs, oil, buttermilk, and vanilla extract.
Pour half of the dry ingredients into the wet ingredients. Whisk between each addition using a kitchen hand mixer. Add the rest of the wet ingredients.
Spoon cupcake batter with a small (1.58 inch) ice cream scoop onto the liners.
Bake for 18-20 minutes or until a toothpick inserted in the center comes out clean. Cool completely on a cooling rack.
Chocolate ganache frosting
Place chocolate chips in a large glass bowl.
In a small saucepan, combine whipping cream, vanilla, and salt. Heat until hot and starts to bubble.
Remove from the heat and pour over the chocolate chips. Mix it thoroughly with a spatula or whisk and cover with plastic wrap. Keep mixing ganache until it reaches a smooth consistency.
Cool completely, about 1-3 hours in the refrigerator.
Using an electric kitchen mixer with a whisk attachment on medium speed, beat the ganache until fluffy and forms stiff peaks, about 5 minutes.
Transfer to a piping bag with a metal piping tip.
Garnish
With a swivel, the peeler shaves the chocolate bar over the frosted cupcakes.
Video
Notes
The recipe makes enough frosting to decorate 12 cupcakes.