- Preheat oven: Preheat oven to 300°F (150°C). Line a baking sheet with parchment paper.
- Combine ingredients: In a large bowl, combine melted butter, 1/3 cup brown sugar, maple syrup, garlic powder, cayenne pepper, and black pepper. Stir until smooth.
- Coat pretzels: Add pretzels and roasted peanuts to the bowl. Toss until evenly coated.
- Bake: Spread coated pretzels and peanuts on the prepared baking sheet. Bake for 30-35 minutes, stirring every 10 minutes, until golden brown and caramelized.
- Add remaining brown sugar: Remove pretzels from the oven and sprinkle with remaining 1/3 cup brown sugar. Toss gently to coat.
- Cool and serve: Allow pretzels to cool completely on the baking sheet. Serve and enjoy!