Separate eggs; let stand at room temperature for 30 minutes. Coat six 6-oz. souffle dishes with cooking spray. Sprinkle 1 teaspoon of sugar into each dish, tilting to cover the bottom and sides; set aside.
Preheat oven to 375°. In a large bowl, whisk corn syrup, cocoa, egg yolks and vanilla until blended; set aside. In a large bowl with clean beaters, beat egg whites on medium speed until soft peaks form. Gradually beat in remaining sugar on high until stiff peaks form. Gently fold a fourth of the egg white mixture into chocolate mixture; fold in remaining egg white mixture.
Spoon batter into prepared dishes. Bake 15-20 minutes or until a toothpick inserted in the center comes out clean. Dust with confectioners' sugar. Serve warm.