Mix the flour, cocoa powder and the salt together

Put in another bowl the sugar and oil and mix

Add to step 2 the eggs, natural vinegar, and the vanilla

Put the ingredients of step 1 in the same bowl of step 3

Mix it all together until it becomes soft and creamy

Put it in the oven 180c for app. 40-50 min. (repeat for the second cake step 1-5)

Put the mascarpone in a bowl and whip up until it's creamy

Put it on the cake, after that put the second cake on top of it. And add more cream on top. Sprinkle some pistachios on the cake and voilà!