Preheat the oven: Preheat your oven to 350°F (175°C).

Prepare the cinnamon sugar mixture: In a small bowl, mix together the sugar and cinnamon until well combined.

Coat the pretzels: Place the pretzel sticks in a large bowl. Drizzle the melted butter over the pretzels and gently toss until all the pretzels are evenly coated.

Add the cinnamon sugar: Sprinkle the cinnamon sugar mixture over the buttered pretzels, tossing as you go to coat them evenly.

Bake: Spread the coated pretzel sticks in a single layer on a baking sheet lined with parchment paper.

Bake the pretzels: Bake for 10-12 minutes, or until the sugar has caramelized slightly and the pretzels are crispy.

Cool and enjoy: Let the pretzel sticks cool for a few minutes before serving.

For a fun variation, you can dip the cinnamon sugar pretzel sticks in melted chocolate or drizzle white chocolate over them after they cool for an extra indulgent treat. You could also experiment with adding a pinch of nutmeg or pumpkin spice to the cinnamon sugar mix for a seasonal twist. For a lighter version, swap the butter with cooking spray, and reduce the sugar amount to suit your taste. If you prefer a more intense cinnamon flavor, add an extra half teaspoon of cinnamon. Make sure to store the pretzels in an airtight container to maintain their crispness for a few days.