2-1/2 pkg. (4 oz. each) BAKER'S Semi-Sweet Chocolate (10 oz.), broken into pieces
1/2 cup whipping cream
1/2 cup sugar
1/4 cup flour
1 cup thawed COOL WHIP Whipped Topping
Heat oven to 325F. Microwave chocolate and cream in microwaveable bowl on HIGH 2 min. or until chocolate is almost melted; stir until completely melted. Cool. Whisk in eggs, sugar and flour. Pour into 9-inch pie plate sprayed with cooking spray. Bake 35 min. or until edge of pie is puffed but center is still slightly soft; cool. Serve topped with COOL WHIP.