The most delicious buttercream frosting ready in only 5 minutes. Use on cupcakes or any cake you like.
Beat butter and shortening together on medium speed for a few minutes. Turn down your mixer to slowest speed and slowly add sugar, vanilla. Turn mixer back to medium speed and **add milk /one tablespoon at a time until you reach your desired consistency. beat for about 3-5 more minutes the less milk, the stiffer the batter- which is best if you are cake decorating if you get your frosting too thin, add powdered sugar to stiffen back up.
In frosting shortening does several things.
Yes, you can substitute shortening with butter. HOWEVER you will be giving up on flavor and texture.