1 HR 10 MIN
(2-layer size) yellow cake mix
(15 oz.) pumpkin, divided
pumpkin pie spice, divided
(8 oz.) PHILADELPHIA Cream Cheese, softened
caramel ice cream topping
Heat oven to 350°F.
Beat cake mix, 1 cup pumpkin, milk, oil, eggs and 1 tsp. spice in large bowl with mixer until blended. Pour into 2 greased and floured 9-inch round pans.
Bake 28 to 30 min. or until toothpick inserted in centers comes out clean. Cool cakes in pans 10 min. Remove from pans to wire racks; cool completely.
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 COOL WHIP mixture between layers. (Do not frost top layer.) Drizzle with caramel topping just before serving; top with nuts.