Combine sugar, cream of tartar, water, egg white, and salt in the top of a double boiler. Place over simmering water, and beat at high speed of an electric mixer until stiff peaks form.

Remove from heat; add orange rind, orange flavoring, and food colorings, beating at high speed until well blended.

Per serving: 204 Calories; 0g Fat (0% calories from fat); 2g Protein; 50g Carbohydrate; 0mg Cholesterol; 162mg Sodium