Peanut butter Pie (Mom's)

• 1 C. powdered sugar
• 1/2 C. peanut butter
• 1 (8 oz.) pkg. cream cheese, softened
• 1 (12 oz.) container cool whip
• 1 chocolate graham cracker pie crust
• 2 Reeses peanut butter cups, chopped up for garnish

Use an electric or stand mixer to combine powered sugar, peanut butter, cream cheese and cool whip. Pour the mixture into the pie crust. Top with chopped peanut butter cups. Refrigerate several hours before serving.