preheat oven to 350

lightly grease 2 (9-inch) round baking pans

beat first 6 ingredients in large bowl with mixer on low speed just until moistened, stopping frequently to scrape bottom and side of bowl

beat on medium speed 2 min

stir in chopped chocolate and 2tbsp. crushed candy

pour into prepared pans

bake 50 min. to 1 hour or until. toothpick inserted in centers comes out clean

cool pans on wire racks 10 min.

loosen cakes from sides of pans with spatula or knife.

invert cakes onto racks; gently remove pans

cool cakes completely

fill and frost cake with cool whip

sprinkle with remaining crushed candy

keep refrigerated