Chocolate Angel Food Cake - cooking recipe

Ingredients

2/3 c. flour
1 1/2 c. sugar
1 1/2 tsp. vanilla
1/2 tsp. salt
1/3 c. cocoa
12 egg whites
1 1/2 tsp. cream of tartar

Preparation

Mix 3/4 cup sugar, flour and cocoa.
Beat whites until foamy (5 minutes).
Add vanilla, cream of tartar and salt.
Increase to medium speed while adding 3/4 cup sugar, 1 tablespoon at a time, 5 minutes.
Beat 2 minutes more.
Add 1/3 dry ingredients, fold in, add remaining 2/3 dry ingredients in the same way.
Pour into a 10-inch tube pan and bake at 375\u00b0 for 35 to 40 minutes.