Low Calorie Fluffy Frosting

This frosting comes from CakeCentral.com. They say it doesn't work well for decorations though, but tastes good

• Ready In: 15 mins
• Serves: 12-24
• Yields: 1 layer cake 24 muffins

Ingredients

• 1⁄2 cup sugar
• 1⁄4 teaspoon cream of tartar
• 2  tablespoons water
• 2 (1 g) packets Sweet 'n Low
• 1⁄2 teaspoon vanilla
• 2  large  egg whites

Directions

1. Combine sugar, water, Sweet-n-low egg whites and cream of tartar in top of a double boiler and beat at high speed for 1 minute. Set over simmering water in the bottom of the double boiler.
2. Continue to beat at high speed for 4-5 minutes or until soft peaks form.
3. Remove from heat.
4. Add vanilla to frosting and continue to beat at high speed 1-2 minutes or until thick enough to spread on a cooled cake or cupcakes.