Line a baking sheet with parchment paper, ensuring it fits all pretzel sticks in a single layer.

In a medium saucepan over medium heat, melt the butter. Add the brown sugar and granulated sugar, stirring gently and bring to a boil without stirring for about 3 minutes.

Remove from heat and carefully add the vanilla extract.

In a large mixing bowl, pour in the pretzel sticks and drizzle the caramel mixture over them. Stir gently to coat.

Transfer the coated pretzels onto the prepared baking sheet and spread them into an even layer.

Melt the chocolate chips in a microwave-safe bowl and drizzle over the pretzel layer.

Before the chocolate sets, sprinkle sea salt evenly on top.

Chill in the refrigerator for about 30 minutes until set.

Break the bark into pieces and enjoy!