Luscious 4-Layer Pumpkin Cake

1 pkg. (2-layer size) yellow cake mix
1 can (15 oz.) pumpkin, divided
1/2 cup milk
1/3 cup oil
4 eggs
1-1/2 tsp. pumpkin pie spice, divided
1 pkg. (8 oz.) PHILADELPHIA Cream Cheese, softened
1 cup powdered sugar
1 tub (8 oz.) COOL WHIP Whipped Topping, thawed
1/4 cup caramel ice cream topping
1/4 cup chopped PLANTERS Pecans


HEAT oven to 350°F.

BEAT cake mix, 1 cup pumpkin, milk, oil, eggs and 1 tsp. spice in large bowl with mixer until well blended. Pour into 2 greased and floured 9-inch round pans. (Or do 4 seperate layers to avoid cutting them)

BAKE 28 to 30 min. or until toothpick inserted in centers comes out clean. Cool in pans 10 min. Remove from pans to wire racks; cool completely. (less time if doing 4 thin layers)

BEAT cream cheese in medium bowl with mixer until creamy. Add sugar, remaining pumpkin and spice; mix well. Gently stir in COOL WHIP. Cut each cake layer horizontally in half with serrated knife; stack on serving plate, spreading cream cheese filling between layers. (Do not frost top layer.) Drizzle with caramel topping just before serving; top with nuts. Refrigerate leftovers.