2Add 1 cup of sugar, 4 eggs, a pinch of salt, and 0.5 cup of vegetable oil (or butter) to the blender.
3Blend until smooth, ensuring there are no large bean pieces left.
4Add 0.5 cup of cocoa powder, 1 tablespoon of baking powder, and 1 tablespoon of baking soda to the mixture.
5Blend until well combined.
6Pour the batter into two prepared cake pans, approximately 2 cups in each pan.
7Bake in a preheated 350-degree oven for 30 to 35 minutes.
8While the cakes cool, make the frosting by adding 1 stick of butter, 3 cups of powdered sugar, 0.5 cup of melted unsweetened chocolate, and 1 tablespoon of vanilla extract into a food processor.
9Add 1 tablespoon of milk and process until it forms a frosting.
10Once the cakes have cooled, frost one layer and top with the other layer.