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Preheat oven to 350 degrees. Line cupcake pans with paper liners.
Whip the egg whites in a large mixing bowl at high speed until just frothy, approximately 1 minute.
Add cream of tartar, salt and vanilla and whip at high speed until egg whites are almost stiff, approximately 4 minutes.
Reduce speed to low and gradually blend in 1 cup of sugar. Scrape bowl.
Sift the flour and powdered sugar together and spoon ¼ of the mixture over egg whites. Repeat, folding gently between each addition.
Fill the cupcake papers 2/3 full. Bake for 15 minutes, then rotate pan and bake for another 5 to 10 minutes or until tops are golden brown and cracks are very dry.
Cool cupcakes completely before removing from pan.
Just before serving, top with vanilla whipped cream and berries. |