Line a baking sheet with parchment paper and set it aside.

Melt the unsalted butter in a medium saucepan over medium heat. Stir gently until melted.

Mix in the brown sugar and granulated sugar, bring to a vigorous boil, and stir for 3 minutes.

Remove from heat and stir in the vanilla extract until fully incorporated.

Pour the pretzel sticks into a large mixing bowl and drizzle the caramel over them. Fold until evenly coated.

Transfer the caramel-coated pretzels to the baking sheet into an even layer.

Melt the chocolate chips in a microwave-safe bowl in 30-second intervals, stirring until smooth. Drizzle over the pretzels.

Sprinkle sea salt over the melted chocolate while still warm.

Chill in the refrigerator for about 30 minutes until set. Break into pieces and enjoy.