With your electric mixer or stand mixer, put the eggs, sugar, vanilla, salt and mix until white and cramy.. then put the oil and mix for 2 minutes.. in another pan sift the flour, cacao, baking powder.. then add them gardually to the batter along with the butter milk.. in the end you will get a smooth batter.. put them in the cupcake cups (fill only 3/4 of the cup or a little bit less) and bake in a preheated oven at 180 degrees.. let them cool and you can garnish them with chocolate ganash 🌹