Crush the pretzels in a resealable plastic bag using a rolling pin until they are small pieces, about the size of a quarter.

In a medium saucepan, melt 1/2 cup of butter over low heat and stir frequently. Remove from heat and mix in 1 cup of salted caramel sauce.

Add the crushed pretzels to the buttery caramel and gently stir until evenly coated.

Line an 8x8-inch baking dish with parchment paper and press the pretzel mixture evenly into the dish.

In a microwave-safe bowl, melt 1 cup of chocolate chips in 30-second intervals until smooth.

Pour the melted chocolate over the pressed pretzel mixture and spread it evenly.

Cover the dish with plastic wrap and refrigerate for at least 2 hours until firm. Cut into squares and serve.