Schaum Torte - cooking recipe

Ingredients

6 eggs
1/8 tsp salt
1/8 tsp cream of tartar
2 c. sugar
1/8 tsp vanilla
1 tsp vinegar

Preparation

Beat 6 egg whites until frothy, 1/8 tsp salt sprinkled over egg whites, add 1/8 tsp cream of tartar.
Beat until stiff.
Add 2 c. sugar very slowly, beating after each addition, then 1/8 tsp vanilla and 1 tsp vinegar with last addition of sugar.