Contributed by World Recipes Y-Group
- Makes 5⅓ cups.
- Combine all ingredients, except vanilla in top part of double boiler.
- Beat about 1 minute to mix thoroughly.
- Then put over boiling water and beat constantly with rotary or electric beater for 7 minutes, or until frosting will stand in stiff peaks (stir frosting up from bottom of pan occasionally)
- Remove from over boiling water and add vanilla.
- Beat until of proper spreading consistency.