Chocolate Cake Roll

Directions

1. 1
   Preheat oven to 350°.
2. 2
   Line a 15 x 10 inch jelly roll pan with waxed paper.
3. 3
   Grease and flour lined pan; tap out excess.
4. 4
   In medium bowl, combine flour, cocoa powder, cornstarch, baking soda, baking powder and salt.
5. 5
   Mix well.
6. 6
   In a separate bowl, using an electric mixer set on medium speed, beat egg yolks and 1/4 c. sugar until fluffy.
7. 7
   In a small bowl, using clean beaters, beat egg whites on high until foamy.
8. 8
   Gradually add 1/2 c. sugar, beating until stiff, but not dry, peaks form.
9. 9
   Fold 1/3 beaten egg whites into egg yolk mixture.
10. 10
    Alternately fold in remaining whites and flour mixture.
11. 11
    Pour batter in pan; smooth top.
12. 12
    Bake until a toothpick inserted in center comes out clean, about 15 minutes.