Line up the 50 of the pretzels on parchment paper or a silpat lined baking sheet.

In the bowl of your mixer, combine the peanut butter, powdered and light brown sugar and butter. Mix on medium until combined and crumbly.

Measure 1/2 tablespoon of the peanut butter mixture and form into squares the size of the pretzel. Make fifty or so and lay the pb squares on top of each pretzel.

Take the remaining pretzel and press gently on top of the peanut butter squares to make a "sandwich".

Add the chocolate chips to a microwave safe bowl or measuring cup and heat slowly in the microwave until melted. Stirring ever 15-20 seconds until smooth.

Dunk the pretzel bites half way into the melted dark chocolate, drip off any excess chocolate into the measuring cup and place them back on the lined baking sheet. Repeat with the remaining bites.

Before the chocolate sets, sprinkle with sea salt or sprinkles of your choice.