My Favorite Chocolate Icing!!

This is officially my most favoritest chocolate icing!!! I've used it for icing and filling. I've tried it with chocolate, white and yellow cakes and it's all good!!! It's worth every single calorie!!!

Chocolate Hazelnut Buttercream

1 cup butter, softened
1/2 cup shortening
2/3 cup unsweetened cocoa powder
4 cups confectioner's sugar
1-1/3 cups Nutella
2 teaspoons vanilla
milk

Cream butter and shortening. Sift Cocoa with the sugar and add gradually to the creamed mixture. Add a tablespoon of milk at a time until desired consistency is reached. Add Nutella and vanilla and blend until smooth and creamy.