Yield: 9 Servings
Mix sugar, cocoa and salt in 2-quart saucepan. Add water. Heat to boiling stirring constantly. Boil and stir 2 minutes. Stir in milk; heat just until hot (do not boil). Stir in ¼ ts vanilla if desired.
Beat with hand beater until foamy or stir until smooth. Serve immediately. 9 servings (about ⅔ cup each);115 calories per serving.
Source: Betty Crocker's Cookbook, 6th Edition