These butter toffee pretzels are sweet, crunchy, and addictive! Perfect for parties, gifts, or a snackable treat.

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Preheat the oven to 250°F (120°C). Line a large baking sheet with parchment paper.
Spread the pretzels evenly on the prepared baking sheet.
In a saucepan over medium heat, melt the butter and stir in the brown sugar. Bring the mixture to a boil, stirring constantly for about 2-3 minutes.
Remove the saucepan from heat and stir in the vanilla extract and baking soda. The mixture will bubble slightly.
Immediately pour the toffee mixture over the pretzels and toss to coat evenly.
Bake in the preheated oven for 45 minutes, stirring every 15 minutes to ensure even coating.
Remove from oven and let cool completely. Break into pieces and store in an airtight container.