Line 1 or 2 baking sheets with parchment or waxed paper and set aside. Sort through the pretzels and replace any broken ones.
Pour the chocolate chips into a microwave-safe bowl. Heat for 30 seconds and stir, then repeat 2-3 times, until almost melted. Stir to melt fully, then add the shortening and stir until smooth.
Add a few pretzels at a time to the chocolate. Use a fork to stir carefully and flip, coating the pretzels in chocolate. Lift them out one at a time, gently tapping to let extra chocolate drip back into the bowl.
Arrange in a single layer on the prepared baking sheet. Repeat until all of the pretzels or chocolate is used. If you like, you can drizzle more chocolate over the tops for a striped effect.
Let the pretzels rest until the chocolate is set, chilling in the fridge to speed the process, if you like. Store in an airtight container.
Nutrition information is an estimate based on online calculators and provided as a courtesy. Any nutritional information should be used as a general guideline only.