Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
Spread the pretzel sticks evenly on the prepared baking sheet.
In a small saucepan, melt the butter over medium heat. Add the caramel sauce and stir until smooth and heated through.
Pour the caramel mixture over the pretzel sticks, ensuring they are well coated.
Bake in the preheated oven for 10 minutes, allowing the pretzels to warm and the caramel to set slightly.
Remove from the oven and immediately sprinkle the chocolate chips over the top. Let them sit for 5 minutes to soften.
Once softened, use a spatula to spread the melted chocolate evenly over the caramel-covered pretzels.
Sprinkle the sea salt over the chocolate layer.
Allow the bark to cool at room temperature for about 30 minutes, then refrigerate for 1 hour until fully set.
Once set, break the bark into pieces and serve.