To remove the pulp from the pumpkin seeds, place them in a bowl of cold water, swish them around, then let them sit for 5-10 minutes. The pulp will fall to the bottom, while the seeds will float on top. Remove the seeds with a strainer, and discard the rest.
Place the pumpkin seeds in a medium saucepan with 2 quarts water and salt. Bring up to a boil and cook for about 10 minutes. Drain completely, then spread out on to towels to dry. Try to remove as much moisture as possible.
Preheat the oven to 350 degrees. Toss the seeds with oil, a little more salt, and any seasoning you'd like to use. Roast in the oven for about 20-25 minutes, or until they become golden brown and crisp. Give them a shake and stir them around half way through to ensure even cooking.
Toss with any remaining seasonings, pour into a bowl, and start snacking. Leftover seeds can be stored in an airtight container at room temperature for up to a week.