SPRAY eight 6-ounce ramekins or custard cups with nonstick cooking spray; coat lightly with granulated sugar.
MICROWAVE morsels, butter and baking cocoa in large, microwave-safe bowl on HIGH (100%) power for 1 minute; stir. Microwave at additional 10-second intervals, stirring until smooth. Stir in egg yolks and vanilla extract.
BEAT egg whites in large mixer bowl until soft peaks form. Gradually beat in 1/3 cup granulated sugar until stiff peaks form. Stir one-fourth of egg white mixture into chocolate mixture to lighten. Fold in remaining egg white mixture gently but thoroughly. Spoon into prepared ramekins, filling about 3/4 full. Cover soufflés individually with plastic wrap and refrigerate for up to 1 day.
PREHEAT oven to 400° F. Remove plastic wrap from soufflés. Place soufflés on baking sheet. Bake on center oven rack for 18 to 20 minutes or until puffed and center still moves slightly. Serve with scoop of ice cream. Serve immediately.
Cook’s Tip: If you wish to prepare batter and bake immediately, reduce bake time by a couple minutes.