To prepare custard layer, combine 1/4 cup sugar and 1/4 cup egg substitute, stirring well with a whisk. Cook the milk in a small, heavy saucepan over medium-high heat to 180 or until tiny bubbles form around edge (do not boil).
Remove from heat; add semisweet chocolate, stirring until chocolate melts. Gradually add hot milk mixture to sugar mixture, stirring constantly with a whisk.
Pour the hot milk mixture into 6 (4-ounce) ramekins or custard cups coated with cooking spray.
Place ramekins in a baking pan; add hot water to pan to a depth of 1 inch.
Bake at 325 for 30 minutes or until almost set.
Remove from oven; cool in pan 30 minutes.
Remove ramekins from pan; drain water.
To prepare cake layer, place dark chocolate in a small glass bowl. Microwave at high 2 minutes or until almost melted; stir after 1 minute. Set aside. Beat 1/3 cup sugar and 1/3 cup egg substitute with a mixer at medium speed until well blended (about 5 minutes).
Add dark chocolate and applesauce; beat until well blended.
Pour evenly over the custard layer.
Place ramekins in baking pan; add hot water to pan to a depth of 1 inch.
Bake at 325 for 20 minutes.
Remove ramekins from pan. Top each serving with 1 tablespoon whipped topping.