Begin by crushing about 3 cups of pretzels into small pieces, either using a food processor or placing them in a zip-top bag and smashing them with a rolling pin.

In a mixing bowl, combine the crushed pretzels with ½ cup of melted butter and 1 cup of salted caramel sauce. Stir until everything is well coated and forms a sticky mixture.

Line an 8x8-inch baking dish with parchment paper for easy removal. Transfer the pretzel mixture into the dish and use your hands or a spatula to firmly press it down into an even layer.

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

Carefully pour the melted chocolate over the pressed pretzel mixture, spreading it evenly with a spatula.

Cover the baking dish with plastic wrap or aluminum foil, and place it in the refrigerator for at least 2 hours, or until completely set.

Once chilled, remove the dish from the refrigerator and lift the bars out using the parchment paper. Cut them into squares or rectangles.