Angel Food Cake - cooking recipe

Ingredients

2 c. egg whites (room temperature)
1 1/2 tsp. cream of tartar
1 c. sugar
1/2 tsp. salt
1/2 tsp. vanilla
1 additional c. sugar
1 c. self-rising flour

Preparation

In large bowl, beat egg whites with salt until foamy.
Add cream of tartar and vanilla and beat until it begins to get stiff. Add sugar and continue beating until very stiff (until when bowl is tilted on side it won't move).
Mix another cup of sugar with self-rising flour in a small Tupperware bowl; shake up to mix. Sprinkle that into egg white mixture and fold in by hand (not a mixer).