Stir in peanut butter chips. Bake in a greased 13x9 inch baking pan at 350* for 20-25 minutes (Do not over bake)
In a large bowl, whisk milk and pudding mixes for 2 minutes. Wait for 2 minutes until it is soft-set. Cut peanut cups in half; set aside. 1/3 cup for garnish.
Add peanut butter and Vanilla; mix well. Fold in 1 1/2 cartons whipped topping. Place a third of the brownies in a 5 qt glass bowl. top with a third of the remaining peanut butter cups. Spoon a third of the pudding mixture, over the top. Repeat layers twice.
Cover with remaiing whipped topping; garnish with reserved peanut butter cups. Refrigerate until chilled: Yield: 20 servings (1 cup each)