In a stand mixer, combine peanut butter, margarine, brown sugar, and confectioner’s sugar, and mix until well-combined. 

Roll peanut butter mixture into almost one-inch balls and gently smash in-between two pretzels.

Line a baking sheet with Gefen Parchment Paper and set aside. In a medium bowl, microwave semi-sweet chocolate in 15-second increments, until melted.

Dip half of pretzel sandwiches in melted chocolate and place on prepared sheet. Sprinkle with some sea salt and let chocolate harden. 

Serve immediately or store in an airtight container for up to three days.