De-seed a butternut (or any winter squash). Separate seeds from strings. Use a bowl of water if you need to reduce the stickiness of it all.
Drain water. Toss seeds with oil. Any rinse water will evaporate during baking. I find that textbook methods of drying on paper towels just gives you seeds stuck on paper toweling. Spread wet seeds on a pie plate (or cookie sheet, whatever matches the amount of seeds you have).
_Pumpkin Day!_ contains recipes, including toasted (or roasted) pumpkin seeds. I have loved the illustrations (paper bag collages) and the content of this book for years. I think they are charming. My love for this book extends past ten years. I really ought to own the book by now, we’ve checked it out from the library so much.