Pavlova
["4 egg whites", "1 c. castor sugar", "1/2 tsp. vanilla", "3/4 tsp. white vinegar"]
["Step 1:", "Beat egg whites until soft peaks form; add 1/3 cup of the sugar and beat until dissolved.", "Gradually add remaining sugar, beating well after each addition.", "When sugar is dissolved, add vanilla and vinegar; beat 1 minute only to combine mixture. Mixture will be thick."]
["egg whites", "castor sugar", "vanilla", "white vinegar"]