In pot over high heat, bring water to boil. Add pumpkin seeds and 2 teaspoons salt; boil 15 minutes. Drain water and spread seeds evenly on paper towels to dry.

Preheat oven to 350 F. Line baking sheet with foil or parchment paper.

In medium bowl, toss seeds and butter until coated well. Sprinkle with garlic powder, paprika and additional salt, if desired. Spread seeds evenly on baking sheet.

Bake 25-30 minutes, or until golden brown and lightly toasted. Stir every 10 minutes.