Butter Cream Icing

1 pound confectioners' sugar, divided
1/4 pound soft butter or margarine
1/8 teaspoon salt
1 teaspoon vanilla extract
3 to 4 tablespoons milk

Cream one-third of sugar with butter or margarine and salt in large bowl. Blend extract, 2 tablespoons milk and remaining sugar into mixture. Gradually stir remaining milk into frosting until desired spreading consistency is reached.