Start by melting your chocolate. You can do this by melting it in the microwave in 30 second increments.
Line a baking sheet with foil or parchment paper and transfer the melted chocolate to the baking sheet.
Use a spoon or rubber spatula to spread out the layer of chocolate evenly.
Add your peanut butter to a ziplock bag and cut a small hole in one of the corners.
Drizzle the peanut butter in vertical lines across the melted chocolate.
Then take a toothpick and run it in the opposite direction of the peanut butter lines to create a marble effect.
Transfer your pretzels to a separate ziplock bag and crush them.
Sprinkle the crushed pretzels on the chocolate peanut butter bark.
Add a sprinkle of sea salt if you would like.
Refrigerate or freeze your chocolate pretzel bark until it has fully hardened.
Cut it with a knife or break it apart with your hands and enjoy your delicious dessert :)