1/2 cup creamy peanut butter
2 cups semisweet chocolate chips
Line a 9×13 baking pan with parchment paper and spray with nonstick cooking spray. In a large mixing bowl, combine peanut butter, softened butter, powdered sugar and crushed pretzel sticks. Press evenly into prepared pan. In the microwave, melt the chocolate chips with the peanut butter, stirring every 30 seconds until melted and smooth. Spread over the peanut butter layer. Sprinkle on crushed pretzels. Refrigerate for at least one hour before cutting into squares.