Orange Cake - cooking recipe

Ingredients

6 egg whites (3/4 c.)
1 3/4 c. sifted all-purpose flour (sift before measuring)
1/4 tsp. salt
1 1/2 c. granulated sugar
6 egg yolks
6 Tbsp. fresh orange juice
1 Tbsp. freshly grated orange peel
confectioners sugar

Preparation

In large bowl of electric mixer, let egg whites warm to room temperature (about 1 hour).
Measure flour.
Sift about 2 cups flour once on a sheet of waxed paper.
Fill cups lightly to overflowing.
With spatula, cut off excess to make 1 3/4 level cups.
Sift flour with salt; set aside.