Preheat oven to 400 F.
Line a baking sheet with parchment paper.
Fit large pastry bag with a plain ½ inch round tube. If you don't have one, just cut off the end of a Ziploc bag.
Place egg whites in a bowl and beat on high until soft peaks start to form. Don't over beat the egg whites.
Slowly add 2 Tablespoons sugar and continue beating until stiff and glossy.
In another bowl, beat 4 egg yolks and remaining ⅔ cup sugar.
Whip until thick and very pale in color.
In a small bowl, whisk together 1 cup flour and ½ teaspoon baking powder.
Fold half the egg whites into the egg yolk mixture.
Fold in flour, and then add the remaining egg whites.
Transfer mixture to the pastry bag (or Ziploc bag) and pipe strips that look like ladyfingers onto the prepared baking sheet (make them about 6 inches long).
Bake for 8 minutes.