Peanut butter layer

• Line a 9-inch baking pan with parchment paper leaving an overhang for easy removal.
• Crush the pretzels to almost completely fine, leaving a few larger pieces for crunch. We do this in a food processor but you can also place the pretzels in a ziplock bag and crush them with a rolling pin.
• In a large mixing bowl (microwave safe) melt the butter. Stir in the 1 cup peanut butter, powdered sugar, and crushed pretzels.
• Spoon the peanut butter mixture into the prepared baking dish and press it out into an even layer. Place in the freezer while you melt the chocolate chips.
• Place the chocolate chips and 2 tablespoons peanut butter in a microwave-safe bowl or large measuring cup. Microwave in 20-30 second intervals, stirring well after each interval, until melted and smooth.
• Pour the melted chocolate over the top of the bars and spread it out into an even layer. Sprinkle the broken pretzel pieces over the top and lightly press them into the chocolate layer. Sprinkle the kosher salt over the top.
• Cover tightly with plastic wrap and refrigerate for at least one hour. Remove from the pan using the overhang handles and slice into bars.