01 - Set the oven to 325°F and line a baking sheet with parchment paper.
02 - Rinse the pumpkin seeds with cold water and thoroughly pat dry using a clean towel.
03 - In a medium bowl, mix olive oil, sea salt, smoked paprika, ground cumin, cayenne pepper if using, garlic powder, and black pepper until well blended.
04 - Add the dried pumpkin seeds to the seasoning mixture and toss until evenly coated.
05 - Spread the seasoned seeds in a single layer on the prepared baking sheet.
06 - Roast for 20 to 25 minutes, stirring once halfway through, until golden and crisp.
07 - Remove from the oven and allow the seeds to cool completely before serving.