1.In a large mixing bowl, using a hand held mixer, whip cream cheese until fluffy. Add sifted powdered sugar. Mix until all is incorporated. Add peanut butter, continue to mix until light and fluffy. Add salt and vanilla. Mix until combined.2.Add the whole tub of Cool Whip and mix on low speed. Then with a rubber spatula, dig down and make sure all is combined. Fold in about 1/8 cup mini chips.3.Gently pour into prepared crust and smooth with the spatula. Sprinkle with mini chips. Place in freezer for about 1 hour. The pie is ready to serve. Enjoy!!