CONFECTIONERS' SUGAR FROSTING

This recipe is on the back page of the pamplet shown below. This is from my Sophomore high school home economics class. My, how times have changed since 1963!

1/3 cup butter or margarine
1 teaspoon vanilla extract
1/2 teaspoon salt
1 pound (3 1/2 to 4 cups) sifted confectioners' sugar
About 1/4 cup cream or other liquid

Cream and thoroughly beat together butter or margarine, vanilla and salt. Add confectioners' sugar and liquid alternately, adding sufficient liquid to give the frosting proper spreading consistency. Beat thoroughly after each addition, since the velvety smoothness of the frosting is influenced by sufficient beating. Spread between layers, on top, and on sides of cake. Yield: Enough frosting for two 8-inch or 9-inch layers.