1 pkg. (8 squares) BAKER'S Semi-Sweet Chocolate, divided
1 pkg. (2-layer size) chocolate cake mix
1 pkg. (3.9 oz.) JELL-O Chocolate Flavor Instant Pudding
1 cup BREAKSTONE'S Sour Cream
1/2 cup oil
1/2 cup water
1 tub (8 oz.) COOL WHIP Whipped Topping (Do not thaw.)
2 Tbsp. PLANTERS Sliced Almonds
Chop 2 chocolate squares. Beat next 6 ingredients in large bowl with mixer on low speed just until moistened. Beat on medium speed 2 min. Stir in chopped chocolate. Pour into 2 (9-inch) round pans sprayed with cooking spray.
Bake 30 to 35 min. or until toothpick inserted in centers comes out clean. Cool 10 min.; remove to wire racks. Cool completely.
Microwave COOL WHIP and remaining chocolate squares in microwaveable bowl on HIGH 1-1/2 min. or until chocolate is completely melted and mixture is well blended, stirring after 1 min. Let stand 15 min. to thicken. Stack cake layers on plate, filling and frosting with COOL WHIP mixture. Top with nuts. Keep refrigerated.
Prepare as directed, using JELL-O Chocolate Fat Free Sugar Free Instant Pudding, BREAKSTONE'S Reduced Fat Sour Cream and COOL WHIP LITE Whipped Topping.
The fudge-like texture of this cake improves when it is stored overnight in the refrigerator.