As much as we love a zero-waste queen, fresh pumpkin seeds like the ones you scoop out while making a jack-o-lantern aren't great for pumpkin butter. The thick white part of fresh pumpkin seeds, also known as the hull, is very tough and won't break down in a food processor as well as pepitas do. If you're looking for ways to use those fresh pumpkin seeds I recommend making these spicy roasted pumpkin seeds.