Muffet’s Mocha Buttercream Frosting

6 T butter, soft 4 ½ c confectioners sugar 2 ¼ T coffee powder ½ c + 1 T cocoa, unsweetened ½ c milk 2 ¼ t vanilla ⅜ t salt Cream butter, vanilla & salt. Add other ingredients. Note: There are a couple different versions of this recipe floating around the family; taste as…