1/2 cup shortening, 1/2 cup softened butter, 1 teaspoon vanilla extract, 4 cups confectioners’ sugar, 2 tablespoons milk..
Mix all the ingredients expect sugar blend it well. Now add one cup of sugar and blend it again. Repeat this step for the rest 3 cups of sugar(add one cup sugar at a time). Now add milk and beat it to get fluffy mixture.